JP5314543B2 - Respiration induction device, respiration induction method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance viewer's psychological action, such as a sense of togetherness and a sense of presence, on contents by guiding his or her breathing state to a breathing state determined for each reproduction position of the contents. <P>SOLUTION: In a breathing-guiding device, the contents with a breathing distribution, which include content information corresponding to respective reproduction positions along the time base and breathing target information for specifying breathing states preliminarily determined for respective breathing target set positions being at least part of reproduction positions, are stored in a memory, and presentation variable information for, along the time base, physically presenting a guided breathing state which is determined in accordance with the breathing target information, of a first set position being any breathing target set position having a prescribed relation to each reproduction position corresponding to each piece of reproduced content information is generated, and respective guided breathing states specified by the presentation variable information are physically presented along the time base. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a content reproduction technique, and more particularly to a technique for inducing the viewer's breathing to a breath suitable for the content to be reproduced.

  It has been reported that the viewer's breathing tempo is induced based on the tempo of content such as music content that progresses along the time axis (see, for example, Non-Patent Document 1). In addition, research on breathing induction technology that uses this phenomenon to induce viewers' breathing based on the music tempo, for example, has been conducted.

Haas F. etl. Effects of perceived musical rhythms on respiratory pattern. J. Appl. Physiol. 1986, 61, pp. 1185-1191

  On the other hand, from the above-mentioned phenomenon of breathing into the content, conversely, synchronizing the viewer's breathing with the breath suitable for each playback position of the content is a psychology such as a sense of unity and realism to the content of the viewer. It is thought to affect the action. For this reason, information to guide the breathing suitable for each scene of the content is presented to the viewer, thereby inducing the viewer's breathing, etc. It can be expected that psychological effects can be improved. In particular, in the case of viewers with little content appreciation experience, it has been reported that the appreciation of the breathing tempo cannot be sufficiently achieved just by appreciating the content (for example, non-patent literature) 1), such a viewer can be expected to be particularly effective.

  However, the conventional breathing induction technology is mainly intended for relaxation and health promotion, and focuses only on guiding the user's breathing to a certain steady breathing pattern. In other words, with the conventional breathing induction technology, the viewer's breathing is guided to the breathing that is appropriate for each playback position of the content, thereby improving psychological effects such as a sense of unity and realism to the viewer's content. There is no.

  The present invention has been made in view of the above points, and induces the breathing state of the viewer to the breathing state determined at each playback position of the content, whereby the viewer's sense of unity and presence in the content can be obtained. The object is to provide a technique capable of improving psychological effects such as feeling.

  In the present invention, in order to solve the above-mentioned problem, content information corresponding to each reproduction position along the time axis and a breathing state predetermined for each breathing target setting position which is at least a part of the reproduction position are displayed. Content with respiration distribution including respiration target information for specifying, and each content information corresponding to each playback position is played back sequentially along the time axis. Physically present along the time axis the induced breathing state determined according to the breathing target information at the first setting position, which is one of the breathing target setting positions that has a predetermined relationship with each reproduction position corresponding to the content information Presentation variable information is generated, and each induced respiratory state specified by the presentation variable information is physically presented along the time axis.

  In the present invention, the induced respiration state determined according to the respiration target information at the first set position, which is one of the respiration target setting positions having a predetermined relationship with respect to each reproduction position corresponding to each content information to be reproduced, is set as the time. Because it is physically presented along the axis, this induces the viewer's breathing state to the breathing state determined at each playback position of the content, and thereby the viewer's sense of unity and presence in the content Psychological effects such as feeling can be improved.

FIG. 1 is a block diagram for illustrating a functional configuration of the respiratory guidance device. FIG. 2 is a diagram for explaining an example of content with a respiratory distribution. FIG. 3 is a diagram illustrating the breathing level V (t). Fig. 4 shows polar coordinate declination in the space (phase space) of the Cartesian coordinate system with the respiratory level V (t) as the first dimension value and the delay value V (t-γ) as the second dimension value. It is the figure which illustrated (phi) (t). 5A and 5B are diagrams illustrating the presentation variable information x (t) output as visual information. FIG. 6 is a flowchart for illustrating the breathing induction method. FIG. 7 is a diagram illustrating content with a respiratory distribution in the first modification of the first embodiment. FIG. 8 is a diagram illustrating content with a respiratory distribution in the second embodiment. FIG. 9 is a diagram illustrating content with a respiratory distribution in Modification 1 of the second embodiment. FIGS. 10A to 10D are diagrams for explaining an example of a respiratory target presenting unit according to the third embodiment. FIG. 11 is a diagram for explaining an example of the predicted value of the expiration start time. FIG. 12 is a diagram for illustrating the processing function of the reproduction speed calculation unit. FIG. 13 is a diagram for illustrating the processing function of the reproduction speed calculation unit. FIG. 14 is a diagram for illustrating the processing function of the reproduction speed calculation unit. FIG. 15 is a flowchart for illustrating the playback speed synchronization method.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

〔Definition of terms〕
Terms are defined as follows:

  Content: Sound information and video information for viewing purposes, such as various music, voice, movies, movies and television programs.

  Content information: Information that constitutes content and is sequentially played back along the time axis.

  Reproduction position: means the reproduction position of each piece of content information that is sequentially reproduced along the time axis, that is, the progress position on the time axis in content reproduction. More specifically, for example, the frame position, sample point, time code, song position pointer, etc. correspond to the playback position.

  Respiratory target setting position: means a predetermined reproduction position at least in part.

  Respiratory state: Means each state during a breathing exercise performed periodically. More specifically, for example, an exhalation start state that is a state at the time of starting an exhalation exercise, an exhalation state at each time point during the exhalation exercise, an expiration end state that is a state at the time of ending the exhalation exercise, an inspiration An inhalation start state, which is a state at the time of starting, an inhalation state at each point in time during the inspiratory motion, an inhalation end state, which is a state at the end of the inspiratory motion, and the like correspond to the respiratory state.

  Respiratory information: Information obtained by measuring the human respiratory state. More specifically, it means, for example, the length around the chest or the abdomen, the respiratory airflow, the temperature difference between exhaled air and inhaled air.

  Reproduction speed: means the reciprocal of the time required from reproducing the content information at a certain reproduction position A to reproducing the content information at the next reproduction position B. This is a concept that can be read as the playback tempo or clock interval.

[First Embodiment]
A first embodiment of the present invention will be described.

<Configuration>
FIG. 1 is a block diagram for illustrating a functional configuration of the respiratory guidance device.

  As illustrated in FIG. 1, the respiratory guidance device 1 according to the first embodiment includes an input unit 10, a storage unit 11 that stores content 11 a with respiratory distribution, a content playback control unit 12, a playback unit 13, and a presentation. The variable calculation unit 14, the respiratory target presentation unit 15, and the control unit 19 are included.

[Input unit 10]
The input unit 10 is a functional unit that receives input of the content 11a with respiratory distribution, and examples of the input unit 10 include an input port, an input interface, a reading device, and a receiving device.

[Content 11a with respiratory distribution]
FIG. 2 is a diagram for explaining an example of the content 11a with respiratory distribution.

  In this embodiment, the content with respiration distribution 11a specifies content information corresponding to each reproduction position along the time axis and a respiration state predetermined for each respiration target setting position which is at least a part of the reproduction position. Data having a data structure including respiration target information.

  In the example of the present embodiment, in order to identify the phase of the periodic respiratory motion by using the sample point as the playback position, MIDI data indicating the pitch and sound intensity as the content information, and all the sample points as the breathing target setting position. Is used as breathing target information. For example, the content with respiration distribution 11a illustrated in FIG. 2 includes content information d (τ) that is MIDI data indicating the pitch and sound intensity corresponding to each sample point τ (playback position) along the time axis. , Information Φ (τ) (respiration target information), which is determined for all sample points τ (respiration target setting position), for specifying a desirable “period of respiratory motion” at each sample point τ; Is a data structure including

  Here, the sample point τ in this example is an integer greater than or equal to 0, and a larger value corresponds to a later time. In addition, in the content 11a with respiratory distribution illustrated in FIG. 2, the content information corresponding to each sample point τ to be reproduced is sequentially reproduced while the sample points τ to be reproduced are sequentially updated along the time axis. The update cycle of the sample point τ to be reproduced is called a sample update interval, and a standard set value of a predetermined sample update interval is set to S0.

  Moreover, the respiration target information Φ (τ) of this embodiment is information for specifying the phase of periodic respiratory motion. In this embodiment, “periodic respiratory motion” is quantified by periodic changes in the respiratory level V (t) indicating the human respiratory state, the respiratory level V (t) is taken as the first dimension value, and its delay value. The declination of polar coordinates in the space (phase space) of the orthogonal coordinate system with V (t−γ) as the second dimension value is defined as “information for specifying the phase of periodic respiratory motion”. In this embodiment, information corresponding to the length around the chest and the abdomen is represented as a breathing level V (t), and the breathing level at time t is represented as V (t). Note that t is an integer index corresponding to a discrete time, and “time t” means a time corresponding to the integer index t. Γ is the delay width of the time delay filter, and its value is preferably about 200 ms to 800 ms.

  FIG. 3 is a diagram illustrating the breathing level V (t). FIG. 4 shows polar coordinates in a space (phase space) of an orthogonal coordinate system in which the respiration level V (t) is a first-dimensional value and the delay value V (t−γ) is a second-dimensional value. It is the figure which illustrated deflection angle (phi) (t).

  As illustrated in FIG. 3, the respiration level V (t) of the present embodiment becomes maximum at the expiration start time (bpe (n−1), etc.) that is the time when expiration starts, and decreases as the expiration state progresses. , It becomes a minimum at the inhalation start time (bpi (n) etc.) that is the time when inspiration starts, increases as the inspiratory state progresses, and reaches a maximum again at the next exhalation start time (bpe (n) etc.) So as to change periodically. In accordance with such a change in the respiration level V (t), a polar coordinate declination φ (t) in the phase space as illustrated in FIG. 4 is determined.

  In this embodiment, when the content information corresponding to each sample point τ that is the respiration target setting position is reproduced, the preferred declination φ (t) is the respiration target information Φ (τ) corresponding to the sample point τ (FIG. 2)) is set in advance in the content 11a with respiratory distribution (see FIG. 2).

[Storage unit 11]
The storage unit 11 is an information storage device such as a magnetic recording device, an optical disc, a magneto-optical recording medium, or a semiconductor memory.

[Content reproduction control unit 12]
The content reproduction control unit 12 of this embodiment is a processing unit configured by, for example, a predetermined program being read by the CPU. The content playback control unit 12 of this embodiment receives content information extracted from the content 11a with respiratory distribution in the storage unit 11 as input, and sequentially plays back each piece of content information corresponding to each playback position at a predetermined playback speed. Playback information is output. For example, the content reproduction control unit 12 receives the content information d (τ) extracted from the content 11a with the respiratory target distribution stored in the storage unit 11 as the content information d (τ) and inputs a predetermined sample update interval. While updating the sample point τ to be reproduced at S0, reproduction information r (τ) (such as an acoustic signal) for reproducing the content information d (τ) corresponding to the sample point τ to be reproduced is sequentially output. For example, the content reproduction control unit 12 sequentially extracts the content information d (τ) corresponding to the sample point τ to be reproduced from the content 11a with the respiration target distribution while updating the sample point τ to be reproduced at the sample update interval S0. The reproduction information r (τ) for reproducing the extracted content information d (τ) is sequentially output.

[Playback unit 13]
The playback unit 13 of this embodiment is a known presentation device that includes, for example, an amplifier, a speaker, an image display device, and the like. The reproduction unit 13 receives the reproduction information r (τ) output from the content reproduction control unit 12 and outputs content such as acoustic information specified by the reproduction information r (τ).

[Presentation variable calculation unit 14]
The presentation variable calculation part 14 of this form is a process part comprised when a predetermined program is read by CPU, for example. The presentation variable calculation unit 14 according to the present embodiment performs predetermined processing for each reproduction position corresponding to each piece of content information to be reproduced when each piece of content information corresponding to each reproduction position is sequentially reproduced along the time axis. Generating presentation variable information for physically presenting along the time axis the induced respiratory state determined according to the respiratory target information of the first setting position, which is one of the related respiratory target setting positions, Output information. The first set position of the present embodiment is a breathing target set position that is a playback position corresponding to the content information to be played back, and the guided breathing state of the present embodiment is the breathing state indicated by the breathing target information at the first set position. It is.

  For example, the presentation variable calculation unit 14 according to the present embodiment plays back each content to be reproduced when the content information d (p (t)) corresponding to the sample point τ = p (t) is sequentially reproduced along the time axis. Respiration target information Φ (p (t)) of each sample point τ = p (t) corresponding to information d (p (t)) is input, and the phase indicated by the respiration target information Φ (p (t)) Presentation variable information x (t) for physical presentation along the time axis is generated, and the presentation variable information x (t) is output. Note that p (t) represents a sample point τ corresponding to the content information d (p (t)) reproduced at time t. More specifically, for example, the presentation variable calculation unit 14 of the present embodiment, at time t = t1 (FIG. 2) when the content information d (p (t1)) is reproduced, respiration target information Φ (p ( Using t1)) as input, presentation variable information x (t1) for physically presenting the phase indicated by the respiratory target information Φ (p (t1)) along the time axis is generated and output.

  Moreover, the presentation variable information x (t) is a mapping of the respiratory target information Φ (p (t)). For example, it is easy for a human to intuitively understand the phase indicated by the respiratory target information Φ (p (t)). It is converted to a numerical value. For example, in the inspiratory state from the start of inspiration to the start of the next exhalation (see FIG. 3), the value of the presentation variable information x (t) increases as the phase advances, and the exhalation state from the start of exhalation to the start of the next inspiration Then, the value of the presentation variable information x (t) is made smaller as the phase advances. Conversely, in the inspiration state, the value of the presentation variable information x (t) decreases as the phase advances, and in the expiration state from the start of exhalation to the start of the next inspiration, the presentation variable information x (t) increases as the phase advances. The value may be increased. Specific examples of the presentation variable information x (t) include, for example, the following formulas (1) and (2).

x (t) = C ・ cos (Φ (p (t)) + C0) + C1 (1)
x (t) = mod (Φ (p (t)), π) + C1 (2)
Where mod (Φ (p (t)), π) represents the remainder of dividing Φ (p (t)) by π, and C, C0, and C1 are arbitrary satisfying | C | ≦ C1 and C ≠ 0 Represents a constant.

[Respiration target presentation unit 15]
The breathing target presenting unit 15 of the present embodiment receives the presentation variable information as an input, and when the content information is sequentially reproduced along the time axis, each guided respiratory state specified by the presentation variable information is physically processed along the time axis. To present. The respiratory target presenting unit 15 of this embodiment is a known presenting device that displays visual information such as images and light, auditory information such as music and voice, and tactile information such as vibration. The respiration target presenting unit 15 may be a part of the reproduction unit 13 or may be configured separately from the reproduction unit 13. However, it is desirable that the type of the physical phenomenon perceived by the viewer due to the reproduction of the content information is different from the type of the physical phenomenon perceived by the viewer due to the presentation by the breath target presentation unit 15. For example, when the content is music content and the type of the physical phenomenon perceived by the viewer by reproduction of the content information is a sound wave, the type of the physical phenomenon perceived by the viewer by the presentation by the breathing target presentation unit 15 is the sound wave. It is desirable to be other than. In this embodiment, the case where the respiratory target presenting unit 15 presents visual information and the physical phenomenon perceived by the viewer by the presenting is light is exemplified. That is, the respiratory target presenting unit 15 of the present embodiment outputs the presentation variable information x (t) as visual information.

  5A and 5B are diagrams illustrating the presentation variable information x (t) output as visual information. FIG. 5A shows an example in which the presentation variable information x (t) is displayed as the length of the bar graph on a display or the like. FIG. 5B shows the presentation variable information x (t) with the size of a circle ( It is an example displayed as a radius of a circle.

[Control unit 19]
The control unit 19 is, for example, a processing unit configured by reading a predetermined program into the CPU. The control unit 19 controls the entire processing of the respiratory guidance device 1.

<Method>
Next, the respiratory induction method of this embodiment will be exemplified.

  FIG. 6 is a flowchart for illustrating the breathing induction method.

  First, the content 11a with respiratory distribution is input to the input unit 10 (step S10) and stored in the storage unit 11 (step S11).

  For example, the content reproduction control unit 12 updates the content point d (τ) corresponding to the sample point τ to be reproduced while updating the sample point τ to be reproduced at the sample update interval S0. Are sequentially extracted, and reproduction information r (τ) for reproducing the extracted content information d (τ) is sequentially output (step S12). For example, the reproduction unit 13 receives the reproduction information r (τ) output from the content reproduction control unit 12 and outputs content such as acoustic information specified by the reproduction information r (τ) (step S13).

  In addition, the presentation variable calculation unit 14 of this example displays each content to be reproduced when the content information d (p (t)) corresponding to the sample point τ = p (t) is sequentially reproduced along the time axis. Respiration target information Φ (p (t)) of each sample point τ = p (t) corresponding to information d (p (t)) is input, and the phase indicated by the respiration target information Φ (p (t)) Presentation variable information x (t) for physical presentation along the time axis is generated, and the presentation variable information x (t) is output (step S14). The respiratory target presentation unit 15 outputs the input presentation variable information x (t) as visual information (step S15).

  Next, the control unit 19 determines whether or not the reproduction of all the content information d (τ) included in the content with respiration distribution 11a has been completed (step S19). Here, when it is determined that the reproduction of all the content information d (τ) has not been completed, t1 + 1 is set as a new t1, and the process returns to step S12. On the other hand, if it is determined that the reproduction of the content information d (τ) has been completed, the process ends.

[Variation 1 of the first embodiment]
Next, Modification 1 of the first embodiment will be described. In the following description, differences from the already described items will be mainly described, and the description of the already described items will not be repeated. In addition, the functional configurations that have already been described will be omitted using the same reference numerals.

  In the first embodiment, the content 11a with respiration distribution is exemplified in which all sample points are set as respiration target setting positions and the respiration target information is information for specifying the phase of periodic respiration motion. However, a sample point that is desirable as a point in time when the exhalation exercise is started may be set as the respiration target setting position, and information for specifying the exhalation start state at the respiration target setting position may be used as the respiration target information.

  FIG. 7 is a diagram illustrating content 11a ′ with a respiratory distribution in Modification 1 of the first embodiment. The content 11a ′ with a respiratory distribution illustrated in FIG. 7 starts content information d (τ), which is MIDI data indicating the pitch and sound intensity corresponding to each sample point τ along the time axis, and the expiratory exercise. This is data having a data structure including respiration target information Bpe (μ) for specifying the expiration start state defined for each respiration target setting position, which is a desirable sample point as the time point to perform. Note that the respiration target information Bpe (μ) indicates a sample point τ (respiration target setting position) corresponding thereto. For example, the value of the respiration target information Bpe (μ) determined for the sample point τ = 100 is 100. Further, μ is an index given for convenience of explanation, and is a continuous integer of 0 or more for identifying each respiration target information Bpe (μ). A larger value μ corresponds to later respiratory target information in time.

  When such a content with respiration distribution 11a ′ is used, the presentation variable calculation unit is configured to reproduce content information d (p (t)) corresponding to the sample point τ = p (t) sequentially along the time axis. In addition, the induced breathing state determined according to the breathing target information at the first set position corresponding to the sample point τ = p (t) corresponding to the content information d (p (t)) to be reproduced is physically along the time axis. Presentation variable information x (t) is generated to be presented automatically. For example, the presentation variable calculation unit is reproduced when the content information d (p (t1)) corresponding to the sample point τ = p (t1) is reproduced along the time axis at the current time t = t1. Respiratory target information Bpe (m-1), Bpe of each previous and future respiratory target setting position (first setting position) from the sample point τ = p (t1) corresponding to the content information d (p (t1)) Using (m) (see FIG. 7), the presentation variable information x (t1) is calculated and output according to the following equation.

θ (t1) = 2 ・ π (p (t1) -Bpe (m-1)) / (Bpe (m) -Bpe (m-1)) (3)
x (t1) = C ・ cos (θ (t1) + C0) + C1 (4)
However, C, C0, and C1 represent arbitrary constants that satisfy | C | ≦ C1 and C ≠ 0.

[Second Embodiment]
The second embodiment is a modification of the first embodiment. The content with respiratory distribution of the second embodiment further includes a synchronization importance level that is a coefficient predetermined for each synchronization importance level setting position that is at least a part of the playback position. When each content information corresponding to each playback position is sequentially played back along the time axis, any one of the synchronization importance setting positions having a predetermined relationship with each playback position corresponding to each content information to be played back When the content information is sequentially played back along the time axis, the presentation variable information for physically presenting the synchronization importance of the second set position that is as follows is generated along the time axis. Furthermore, each synchronization importance specified by the presentation variable information is physically presented along the time axis.

<Configuration>
As illustrated in FIG. 1, the respiratory guidance device 2 of the second embodiment includes an input unit 20, a storage unit 21 that stores content 21 a with respiratory distribution, a content playback control unit 12, a playback unit 13, and a presentation. The variable calculation unit 24, the respiratory target presentation unit 25, and the control unit 19 are included.

[Input unit 20, storage unit 21, content with respiratory distribution 21a]
The input unit 20 is a functional unit that receives an input of the content with respiratory distribution 21a, and the storage unit 21 stores the content with respiratory distribution 21a. The content 21a with respiratory distribution is used for specifying content information corresponding to each playback position along the time axis and a respiratory state predetermined for each respiratory target setting position that is at least a part of the playback position. This is data having a data structure including respiratory target information and synchronization importance that is a coefficient determined in advance for each synchronization importance setting position that is at least a part of reproduction positions. Here, the synchronization importance indicates the importance of the breathing target information corresponding to the reproduction position corresponding to the synchronization importance. In other words, the synchronization importance level indicates the induced breathing state determined according to the breathing target information corresponding to the reproduction position corresponding thereto, and the breathing of the viewer 100 at the time when the content information corresponding to the reproduction position is reproduced. The greater the importance of synchronization, the greater the value.

  FIG. 8 is a diagram illustrating a content 21a with a respiratory distribution in the second embodiment.

  The content with respiratory distribution 21a illustrated in FIG. 8 includes content information d (τ) that is MIDI data indicating the pitch and the sound intensity respectively corresponding to each sample point τ (playback position) along the time axis. In addition to the information Φ (τ) (respiration target information) that is specified for each sample point τ (respiration target setting position) and that specifies the desired “phase of respiratory motion” at each sample point τ Furthermore, it is data having a data structure including a synchronization importance α (τ) that is a coefficient corresponding to each sample point τ that is a synchronization importance setting position.

[Presentation variable calculation unit 24]
The presentation variable calculation unit 24 of this embodiment is a processing unit configured by, for example, a predetermined program being read by the CPU. The presentation variable information generated by the presentation variable calculation unit 24 of the present embodiment includes the induced respiratory state determined according to the respiratory target information at the first set position described in the first embodiment, and each content information corresponding to each content information to be reproduced. This is for physically presenting along the time axis the synchronization importance of the second setting position, which is one of the synchronization importance setting positions having a predetermined relationship with the reproduction position. In addition, the 2nd setting position of this form is a respiration target setting position which is a reproduction | regeneration position corresponding to the content information reproduced | regenerated.

  When the content information d (p (t)) corresponding to the sample point τ = p (t) is sequentially reproduced along the time axis, the presentation variable calculation unit 24 of the present embodiment further reproduces each content to be reproduced. The synchronization importance α (p (t)) of the sample point τ = p (t) corresponding to the information d (p (t)) is input and added to the presentation variable information x (t) described in the first embodiment. Then, presentation variable information y (t) for physically presenting the synchronization importance α (p (t)) along the time axis is generated and output. More specifically, for example, the presentation variable calculation unit 24 of the present embodiment, at time t = t1 (FIG. 8) when the content information d (p (t1)) is reproduced, respiration target information Φ (p ( t1)) as input, and generates and outputs presentation variable information x (t1) for physically presenting the phase indicated by the respiratory target information Φ (p (t1)) along the time axis, and Generates and outputs presentation variable information y (t1) for physically presenting the synchronization importance α (p (t1)) along the time axis with the synchronization importance α (p (t1)) as input .

  The presentation variable information y (t) is a mapping of the synchronization importance α (p (t)). For example, the synchronization importance α (p (t)) is a biological characteristic such as a human visual characteristic or a psychological scale. Is converted to a numerical value that takes into account. For example, the logarithmic value of the synchronization importance α (p (t)), the exponent value, the synchronization importance α (p (t)) and the proportional value of the logarithmic value and the exponent value are used as the presentation variable information y (t). As a specific example of the presentation variable information y (t), for example, there is the following expression (5).

y (t) = C2 ・ log (α (p (t))) + C3 (5)
However, C2 and C3 are arbitrary constants satisfying C2> 0 and C3> 0, and log () is a logarithmic function.

[Respiration target presentation unit 25]
The respiratory target presenting unit 25 of the present embodiment is a processing unit configured by, for example, a predetermined program being read into the CPU. The breathing target presenting unit 25 of the present embodiment receives the presenting variable information as an input, and when the content information is sequentially reproduced along the time axis, the induced respiratory state and the synchronization importance specified by the presenting variable information are represented on the time axis. Present physically along. The respiratory target presenting unit 25 according to the present embodiment is a known presenting device that displays visual information such as images and light, auditory information such as music and voice, and tactile information such as vibration. The breathing target presentation unit 25 may be a part of the reproduction unit 13 or may be configured separately from the reproduction unit 13. However, it is desirable that the type of the physical phenomenon perceived by the viewer due to the reproduction of the content information is different from the type of the physical phenomenon perceived by the viewer due to the presentation by the respiratory target presentation unit 25. In this embodiment, the case where the respiratory target presenting unit 25 presents visual information and the physical phenomenon perceived by the viewer by the presenting is light is exemplified. That is, the respiratory target presenting unit 25 according to this embodiment outputs the presentation variable information x (t) and y (t) as visual information.

  For example, the breathing target presentation unit 25 receives the presentation variable information x (t) and y (t) as input, and has a luminance specified by the presentation variable information y (t), and the length and magnitude of the presentation variable information x (t). A graphic such as a bar graph or a circle (FIGS. 5A and 5B) is displayed. At this time, the luminance becomes higher as the value of the synchronization importance α (p (t)) corresponding to the presentation variable information y (t) is larger. Thereby, the importance of the breathing target presented by the length and size of a graphic such as a bar graph or a circle can be determined by the luminance of the graphic. In addition, when the value of the synchronization importance α (p (t)) corresponding to the presentation variable information y (t) is equal to or less than the threshold (for example, when y (t) = 0), the presentation variable information x (t) is long. It is desirable not to display a bar graph or a figure such as a circle whose size and size are specified.

  Alternatively, the presentation variable information y (t) may be presented not by luminance but by the color tone of a graphic such as a bar graph or a circle. At this time, if the value of the synchronization importance α (p (t)) corresponding to the presentation variable information y (t) is equal to or less than the threshold (for example, y (t) = 0), a graphic such as a bar graph or a circle The background color may be used. In presenting x (t), it is desirable that the sensory amount is constant regardless of the value of x (t), and y (t) is desirably proportional to the sensory amount of the viewer. For sensory quantities, see, for example, “G.A. Gescheider, Toru Miyaoka (supervised),“ Psychophysics Method / Theory / Application (below) ”, 2003, Kitaoji Shobo.

  Thus, the viewer 100 can intuitively recognize the importance of following the respiratory target indicated by the presentation variable information x (t).

<Method>
Next, the playback speed synchronization method of this embodiment will be illustrated with reference to FIG.

  The difference from the first embodiment is that, instead of the processing of steps S11 and S12, the content with respiratory distribution 21a is input to the input unit 20 (step S20) and stored in the storage unit 21 (step S21). Instead of the processing of step S14, when the presentation variable calculation unit 24 sequentially reproduces the content information d (p (t)) corresponding to the sample point τ = p (t) along the time axis, The presentation variable information x described in the first embodiment is input with the synchronization importance α (p (t)) of the sample point τ = p (t) corresponding to each piece of content information d (p (t)) to be reproduced. In addition to (t), presentation variable information y (t) for physically presenting the synchronization importance α (p (t)) along the time axis is generated and output (step S24), step S15 Instead, the breathing target presenting unit 25 outputs the presentation variable information x (t), y (t) as visual information (step S25). is there.

[Modification 1 of Second Embodiment]
FIG. 9 is a diagram illustrating a content 21a ′ with a respiratory distribution in the first modification of the second embodiment.

  Instead of the content 21a with respiratory distribution of the second embodiment, MIDI data indicating the pitch and sound intensity respectively corresponding to each sample point τ (reproduction position) along the time axis as illustrated in FIG. Synchronized with certain content information d (τ) and respiratory target information Bpe (μ) for specifying the expiration start state defined for each respiratory target setting position, which is a desirable sample point for starting the expiration exercise You may use the content 21a 'with a respiratory distribution which consists of a data structure containing the synchronous importance (alpha) ((tau)) which is a coefficient corresponding to each sample point (tau) which is an importance setting position. The presentation variable information x (t) in this case is the same as that of the first modification of the first embodiment, and the presentation variable information y (t) is the same as that of the second embodiment.

[Modification 2 of the second embodiment]
In the second embodiment and the first modification thereof, the presentation variable information for presenting the induced respiratory state and the presentation variable information for presenting the synchronization importance are separate pieces of independent information. However, the induced respiratory state and the synchronization importance may be expressed by one presentation variable information. For example, the product x (t) · y (t) of x (t) and y (t) exemplified in the second embodiment and its modification 1 may be used as the presentation variable information. In this case, the breathing target presenting unit can present the induced breathing state and the synchronization importance level simultaneously by displaying a graphic whose length and size are determined based on the presentation variable information, for example.

[Third Embodiment]
The third embodiment is a modification of the first and second embodiments and their modifications. In the third embodiment, an example is shown in which the induced breathing state and the synchronization importance are tactilely presented based on the presentation variable information.

<Configuration>
As illustrated in FIG. 1, the respiratory guidance device 3 according to the third embodiment includes the respiratory target presentation units 15 and 25 included in the respiratory guidance device according to the first and second embodiments or their modifications. 35 is substituted.

[Respiration target presentation unit 35]
FIG. 10 is a diagram for explaining an example of the respiratory target presenting unit 35 of the third embodiment. Here, FIGS. 10A and 10C are examples of front views of the breathing target presenting unit 35, and FIGS. 10B and 10D are examples of right side views of the breathing target presenting unit 35.

  The breathing target presentation unit 35 illustrated in FIG. 10 is a massage chair, and a leg 35a, a seat 35b supported by the leg 35a, and one side (support end 35ca) supported by the edge of the seat 35b. A backrest 35c and a treatment element 35d provided on the backrest 35c are provided. The treatment element 35d is driven by a drive device such as a motor (not shown) and moves (first movement) along the backrest 35c at least on a substantially straight line connecting the support end 35ca and the other end 35cb of the backrest 35c. It is possible to move (second movement) in a substantially vertical direction with respect to the backrest 35c. In this example, the treatment element 35d moves along the backrest 35c (first movement) according to the presentation variable information x (t) for presenting the induced respiratory state, and the presentation variable information for presenting the synchronization importance level. In response to y (t), the treatment element 35d moves (second movement) in a substantially vertical direction with respect to the backrest 35c. For example, as the presentation variable information x (t) is larger, the position of the treatment element 35d is closer to the support end 35ca, and as the presentation variable information y (t) is larger, the position of the treatment element 35d is projected from the backrest 35c. That is, the support end illustrated in FIGS. 10C and 10D is more than the presentation variable information x (t) and y (t) corresponding to the position of the support end 35ca illustrated in FIGS. 10A and 10B. Each presentation variable information x (t), y (t) corresponding to the position of 35ca is larger. Thereby, the viewer 100 sitting on the seat 35b and placing his back on the backrest 35 perceives the induced breathing state tactilely according to the position of the treatment element 35d in the back muscle direction (the direction along the spine), and treats the treatment element. The synchronization importance is perceptually perceived by the protrusion amount of 35d.

[Fourth Embodiment]
The fourth embodiment is a modification of the first to third embodiments and their modifications. In the fourth embodiment, the induced breathing state and the synchronization importance level determined according to the respiration target information corresponding to the reproduction position after the reproduction position that is the reproduction target are presented. That is, the first setting position or the second setting position in the present embodiment is located on the time axis after the reproduction position corresponding to each piece of content information to be reproduced.

<Configuration>
As illustrated in FIG. 1, the breathing guidance device 4 according to the fourth embodiment includes the presentation variable computation units 14 and 24 included in the respiratory guidance device according to the first to third embodiments or their modifications. 44.

[Presentation variable calculation unit 44]
The presentation variable calculation unit 44 according to the present embodiment is a processing unit configured, for example, by reading a predetermined program into the CPU. The presentation variable calculation unit 44 according to the present embodiment generates presentation variable information with a reproduction position positioned later on the time axis than the reproduction position corresponding to each piece of content information to be reproduced as the first setting position or the second setting position. .

For example, in the case of the content 11a with a respiratory target distribution illustrated in FIG. 2, the presentation variable calculation unit 44 of the present embodiment has content information d (p (t1) corresponding to the sample point τ = p (t1) at time t = t1. ) Is reproduced, the respiration target information Φ (p (t2) corresponding to the sample point τ = p (t2) (first set position) located on the time axis after the sample point τ = p (t1). )) As input, and in the same way as in the previous embodiment, the presentation variable information x (t2) for physically presenting the phase indicated by the respiratory target information Φ (p (t2)) along the time axis is generated. Output. If the standard setting value for the sample update interval is S0,
Φ (p (t2)) = Φ (p (t1) + Δt / S0)… (6)
It becomes. However, Δt is a positive constant. That is, the sample point τ = p (t2) is a sample point that arrives Δt seconds after the sample information d (p (t1)) of the sample point τ = p (t1) is reproduced.

  Further, for example, in the case of the content 11a ′ with a respiratory target distribution illustrated in FIG. 7, the presentation variable calculation unit 44 of the present embodiment has content information d corresponding to the sample point τ = p (t1) at the current time t = t1. When (p (t1)) is played back along the time axis, the latest past and future from the sample point τ = p (t2) located on the time axis after the sample point τ = p (t1) Using the respiratory target information Bpe (m) and Bpe (m + 1) at each respiratory target setting position (first setting position), the presentation variable information x (t2) is calculated and output according to the following equation.

θ (t2) = 2 ・ π (p (t2) -Bpe (m)) / (Bpe (m + 1) -Bpe (m)) (7)
x (t2) = C ・ cos (θ (t2) + C0) + C1 (8)
However, C, C0, and C1 represent arbitrary constants that satisfy C ≦ C1 and C ≠ 0.

Further, for example, in the case of the content 21a and 21a ′ with respiratory target distribution illustrated in FIG. 8 and FIG. 9, the presentation variable calculation unit 44 of this embodiment further reproduces the content information d (p (t1)). At the time t = t1, the presentation variable information x (t2) is generated and output, and the sample point τ = p (t2) (positioned later on the time axis than the sample point τ = p (t1) ( The presentation variable information y () for physically presenting the synchronization importance α (p (t2)) along the time axis with the synchronization importance α (p (t2)) corresponding to the second set position) as an input. Generate and output t2). If the standard setting value for the sample update interval is S0,
α (p (t2)) = α (p (t1) + Δt / S0) (9)
It becomes.

[Fifth Embodiment]
The fifth embodiment is a modification of the first to fourth embodiments and their modifications. In the fifth embodiment, the reproduction position of the content information is further controlled so that the respiratory state indicated by the respiratory target information of the content with the respiratory target distribution is synchronized with the respiratory state of the viewer 100. That is, in the fifth embodiment, a breathing index for specifying the viewer's breathing state is further extracted from the breathing information obtained by measuring the viewer, and specified by the breathing target information corresponding to the first set position. The content information corresponding to each reproduction position is sequentially set along the time axis so that the breathing state is closer to the viewer's breathing state at the time when the content information corresponding to the first set position is reproduced. A reproduction speed for reproduction is set, and each piece of content information corresponding to each reproduction position is sequentially reproduced at the reproduction speed.

<Configuration>
As illustrated in FIG. 1, in the breathing guidance apparatus 5 of the fifth embodiment, the content playback control unit 12 of the first to fourth embodiments or their modifications is replaced with a content playback control unit 52, and further, respiratory measurement 56, a breathing index extraction unit 57, and a reproduction speed calculation unit 58 are added.

[Respiration measurement unit 56]
The respiration measurement unit 56 is a known device that measures the respiration state of the content viewer 100 and outputs respiration information obtained thereby. In the example of this embodiment, information (respiration level) corresponding to the length around the chest and the abdomen is used as respiration information, and a device that detects respiration from a resistance change of a rubber tube wound around the chest or abdomen (for example, Nihon Kohden) TR-753T manufactured by AD and MLT1132 manufactured by ADInstruments are used as the respiratory measurement unit 56. The respiration measuring unit 56 in this example measures and outputs a respiration level V (t) at a set arbitrary cycle T1 (see FIG. 3). V (t) represents the respiration level at time t.

[Respiration index extraction unit 57]
The respiratory index extraction unit 57 of the present embodiment is a processing unit configured by reading a predetermined program into the CPU, for example. The respiratory index extraction unit 57 of this embodiment extracts a respiratory index for specifying the viewer's respiratory state from the respiratory information obtained by measuring the viewer, and outputs the respiratory index.

<< When respiratory target information is Φ (τ) (first and second embodiments) >>
For example, when the respiratory target information is information Φ (τ) for specifying the phase of the periodic respiratory motion, the respiratory index extraction unit 57, for example, the respiratory index φ (t) at time t as follows: Is generated.

  1. The respiration level V (t) at time t output from the respiration measurement unit 56 is set as a first-dimensional value in the phase space.

  2. Let the respiration level V (t-γ) obtained by passing the respiration level V (t) through the time delay filter be the second-dimensional value of the phase space. Here, γ is the delay width of the time delay filter, and in the case of breathing, about 200 ms to 800 ms is desirable.

  3. The deviation angle when the points (V (t), V (t−γ)) in the orthogonal coordinate system of the phase space are displayed in polar coordinates is obtained and output as a respiratory index φ (t) (see FIG. 4).

<< When Respiration Target Information is Bpe (μ) (Modification 1 etc. of First and Second Embodiments) >>
For example, when the respiratory target information is a sample point Bpe (μ) that is desirable as a time point at which to start exhalation exercise, the respiratory index extraction unit 57 receives the respiratory level V (t) output from the respiratory measurement unit 56, and The predicted value pbpe (n) of the latest future exhalation start time viewed from the time t of the viewer 100 to be measured is output as a breathing index. Here, n is an index given for convenience of explanation, and is an integer corresponding to the number of breaths of the viewer.

  FIG. 11 is a diagram for explaining an example of the predicted value of the expiration start time.

  The predicted exhalation start time pbpe (n) can be obtained, for example, by estimating the latest past respiratory cycle viewed from the current time t = t1 as the latest future respiratory cycle viewed from the time t = t1. . That is, the predicted value pbpe (n) of the expiration start time can be calculated as follows, for example.

pbpe (n) = bpe (n-1) + (bpe (n-1) -bpe (n-2))
= 2 ・ bpe (n-1) -bpe (n-2)… (10)
Where bpe (n-1) is the most recent past exhalation start from time t calculated using respiration levels V (t1), V (t1-1), V (t1-2), ... Bpe (n-2) is the exhalation start time bpe (n-1) calculated using the respiration levels V (t1), V (t1-1), V (t1-2), ... ) Represents the most recent exhalation start time.

[Reproduction speed calculation unit 58]
The reproduction speed calculation unit 58 is a processing unit configured, for example, by reading a predetermined program into the CPU. The reproduction speed calculation unit 58 receives the respiration target information and the respiration index, and the respiration state specified by the respiration target information corresponding to the first set position is reproduced as the content information corresponding to the first set position. Playback speed information that sets the playback speed when sequentially playing each content information corresponding to each playback position along the time axis so as to approach the viewer's breathing state at the time, and identifies the set playback speed Is output. That is, the playback speed calculation unit 58 determines the breathing state specified by the breathing target information corresponding to the first set position and the breathing state of the viewer at the time when the content information corresponding to the first set position is played back. The playback speed of the content is set so that the correlation of is high.

  FIG. 12 to FIG. 14 are diagrams for illustrating the processing function of the playback speed calculation unit 58. Here, every time the respiration level V (t) is obtained by the respiration measurement unit 56, that is, in the cycle T1, the reproduction speed calculation unit 58 determines the sample update interval S (t) and outputs this as reproduction speed information Indicates.

<< When respiratory target information is Φ (τ) (first and second embodiments) >>
For example, as in the example of FIG. 12, when the respiration target information is information Φ (τ) for specifying the phase of the periodic respiration motion, the reproduction speed calculation unit 58 respires corresponding to the first set position. Playback speed information for specifying a playback speed such that the difference between the phase specified by the target information and the phase specified by the breathing index at the time when the content information corresponding to the first set position is played back is reduced. Output.

  In the example of FIG. 12, it is assumed that the reproduction up to the content information d (p (t1)) corresponding to the sample point τ = p (t1) is completed at the time t = t1. At this time, the respiration target information corresponding to the sample point τ = p (t1) (first set position) included in the content 21a with respiration distribution is Φ (p (t1)), and the respiration index at time t = t1 It is assumed that the respiration index output from the extraction unit 57 is φ (t1). The reproduction speed calculation unit 58 receives the respiration index φ (t1) and respiration target information Φ (p (t1)) as input, and the angle formed by these in the phase space of FIG. Ask.

R (t1) = φ (t1) -Φ (p (t1))… (11)
If | R (t1) |> π then L (t1) = R (t1) -Sgn (R (t1)) ・ 2π
else L (t1) = R (t1)… (12)
However, Sgn (δ) is a sign function, and the function value is Sgn (δ) =-1 when δ <0, Sgn (δ) = 0 when δ = 0, and δ> 0. Sometimes Sgn (δ) = 1. When L (t1)> 0, the viewer's breathing has progressed more than the breath indicated by the breathing target information at time t1, and when L (t1) <0, the viewer's breathing has been at the breathing target at time t1. It is later than the breath indicated by the information. FIG. 13 illustrates the relationship between the respiratory index φ (t1), the respiratory target information Φ (p (t1)), and L (t1). FIG. 13 shows an example of L (t1) <0.

  Then, the playback speed calculation unit 58 calculates the sample update interval S (t1) at time t1 as follows, and outputs this as playback speed information.

S (t1) = S0 / {α (p (t1)) ・ C ・ L (t1) +1}… (13)
Here, C is an arbitrary constant that satisfies C> 0. If the synchronization importance α (τ) is not set for the content with the respiratory target distribution as in the first embodiment, the processing may be performed with α (τ) = 1.

<< When Respiration Target Information is Bpe (μ) (Modification 1 etc. of First and Second Embodiments) >>
For example, as in the example of FIG. 14, when the respiration target information is the respiration target information Bpe (μ) that is desirable as the time point at which exhalation exercise is started, the reproduction speed calculation unit 58 respiration The predicted exhalation start time pbpe (n), which is an index, the respiratory target information Bpe (m) of the first set position extracted from the content with the respiratory target distribution, the synchronization importance α (p (t1)), and the sampling point τ = p (t1) as an input and taking into account the synchronization importance α (p (t1)) of the sample point τ = p (t1), the predicted value pbpe (n) of the expiration start time The sample update interval S (t1) is calculated as follows so that the reproduction time of the content information d (τ) corresponding to Bpe (m) approaches.

S (t1) = α (p (t1)) {((pbpe (n) -t1) / (Bpe (m) -p (t1)))-S0} + S0… (14)
Here, α (p (t1)) {((pbpe (n) −t1) / (Bpe (m) −p (t1))) − S0} is a change amount of the sample update interval. Note that when the synchronization importance α (τ) is not set in the content with the respiratory target distribution as in the first modification of the first embodiment, the processing may be performed with α (τ) = 1.

[Content reproduction control unit 52]
The content reproduction control unit 52 is, for example, a processing unit configured by reading a predetermined program into the CPU. The content reproduction control unit 52 receives the reproduction speed information and the content information, and outputs reproduction information for sequentially reproducing each piece of content information corresponding to each reproduction position at the reproduction speed specified by the reproduction speed information. .

  The content reproduction control unit 52 of the present embodiment extracts from the sample update interval S (t1), which is the reproduction speed information output from the reproduction speed calculation unit 58, and the content with a respiratory target distribution stored in the storage unit 11 (21). In order to reproduce the content information d (τ) corresponding to the sample point τ to be reproduced while updating the sample point τ to be reproduced at the sample update interval S (t1) Reproduction information r (τ) (acoustic signal, etc.) is sequentially output.

<Method>
Next, the respiratory induction method of this embodiment will be exemplified.

  FIG. 15 is a flowchart for illustrating the playback speed synchronization method.

  First, the process of step S10 (or S20) is performed, and further, the process of step S11 (or S21) is performed.

  In addition, a respiration measuring unit 56 attached to the viewer 100 measures the respiration state of the viewer 100 at a period T1, and the respiration levels V (t1), V (t1-1), which are the respiration information obtained thereby. V (t1-2),... Are output (step S56). The respiratory levels V (t1), V (t1-1), V (t1-2), ... are input to the respiratory index extracting unit 57, and the respiratory index extracting unit 57 calculates the respiratory index as described above. (Step S57). Next, the control unit 19 determines whether or not the respiratory level up to the required time has been measured (step S57-2). Specifically, for example, in the case where a declination angle when a point (V (t), V (t-γ)) in the orthogonal coordinate system of the phase space is displayed as a polar coordinate is used as a respiratory index (first and second implementations) Morphology, etc.), it is determined whether or not λ + 1 respiratory levels V (t) have been measured. Further, for example, when the predicted value pbpe (n) of the latest future exhalation start time viewed from time t is used as a respiration index (such as the first modification of the first and second embodiments), one exhalation start time ( It is determined whether or not the respiratory level up to the time at which bpe (1)) can be specified has been measured.

  When the determination result in step S57-2 is No, the process returns to step S56. On the other hand, when the determination result in step S57-2 is Yes, the playback speed calculation unit 58 calculates and outputs the update interval S (t1) (playback speed information) as described above (step S58).

  The content playback control unit 52 receives the sample update interval S (t1) output from the playback speed calculation unit 58 and the content information d (τ) extracted from the content with the breathing target distribution as input, and the sample update interval S ( At t1), the reproduction information r (τ) for reproducing the content information d (τ) corresponding to the reproduction target sample point τ is sequentially output while updating the reproduction target sample point τ (step S52).

  The playback unit 13 receives the playback information r (τ) output from the content playback control unit 52 and outputs the content specified by the playback information r (τ) (step S13).

  Next, the process of step S14 (or S24, S34, S44) is executed, and after the process of step S15 (S25) is executed, the respiration measurement unit 56 measures a new respiration level V (t1 + 1). It is determined whether time t = t1 + 1 (step S59). Here, when it is determined that it is not the time t = t1 + 1 at which the new respiration level V (t1 + 1) is measured, the process returns to the process of step S52. On the other hand, if it is determined that the time t = t1 + 1 at which the new respiration level V (t1 + 1) is measured, the control unit 19 then determines that all content information d (τ It is determined whether or not the reproduction of) has been completed (step S19).

  Here, when it is determined that the reproduction of all the content information d (τ) has not been completed, t1 + 1 is set as a new t1 and the process returns to step S56. On the other hand, if it is determined that the reproduction of the content information d (τ) has been completed, the process ends.

[Sixth Embodiment]
The sixth embodiment is a modification of the fifth embodiment. The presentation variable calculation unit of the present embodiment further receives the playback speed information, and the first set position or the second set position of the present embodiment is the playback speed information rather than the playback position corresponding to each piece of content information to be played back. Only values that depend on the specified playback speed are located later on the time axis. That is, in the case of the fourth embodiment, since the sample update interval S0 is constant, Φ (p (t2) at time t = t2 after Δt seconds from time t = t1 by Equation (6) and Equation (9) ), Α (p (t2)) could be identified with high accuracy. However, when the sample update interval S (t) changes as in the fifth embodiment, the presentation variable information at the time t = t2 after Δt seconds from the time t = t1 in the equations (6) and (9). The error will increase. Therefore, in this embodiment, the presentation variable information at the time point positioned later on the time axis is generated by the value depending on the playback speed specified by the playback speed information than the playback position corresponding to each piece of content information to be played back. . For example, instead of Equation (6) and Equation (9),
Φ (p (t2)) = Φ (p (t1) + Δt / S (t1))… (15)
α (p (t2)) = α (p (t1) + Δt / S (t1))… (16)
Is used to specify the presentation variable information at time t = t2. In the examples of equations (15) and (16), p (t1) + Δt / S (t1) corresponds to the first and second setting positions.

<Configuration>
As illustrated in FIG. 1, the respiratory guidance device 6 of the sixth embodiment is obtained by replacing the presentation variable calculation unit of the respiratory guidance device 5 of the fifth embodiment with a presentation variable calculation unit 64.

[Presentation variable calculation unit 64]
The presentation variable calculation unit 64 of this embodiment is a processing unit configured by, for example, a predetermined program being read by the CPU. The presentation variable calculation unit 64 of the present embodiment further receives the reproduction speed information, and the first setting position or the second setting position of the present embodiment is higher than the reproduction position corresponding to each piece of content information to be reproduced. Only a value that depends on the playback speed specified in is positioned later on the time axis. For example, the presentation variable calculation unit 64 receives the sample update interval S (t1) output from the playback speed calculation unit 58, and uses the equations (15) and (16) to show the presentation variable information at time t = t2. Is output.

<Method>
Next, the playback speed synchronization method of this embodiment will be illustrated with reference to FIG.

  The difference from the fifth embodiment is that, instead of step S14 (S24, S34, S44), the presentation variable calculation unit 64 receives the sample update interval S (t1) output from the playback speed calculation unit 58, and The point is to specify and output the presentation variable information at time t = t2 using the equations (15) and (16) (step S64).

[Seventh Embodiment]
The seventh embodiment is a modification of the fifth embodiment. The presentation variable calculation unit of the present embodiment receives the reproduction speed information and the respiratory index as input, and generates presentation variable information for physically presenting the induced respiratory state along the time axis. Further, the induced respiratory state of the present embodiment is a respiratory state specified by a corrected respiratory index obtained by correcting the respiratory index using a correction value that depends on reproduction speed information. The presentation variable calculation unit of the present embodiment presents a guided breathing state that takes into account the breathing state of the viewer 100 and the playback speed information, that is, a guided breathing state determined from the playback speed information based on the breathing state of the viewer 100.

<Configuration>
As illustrated in FIG. 1, in the respiratory guidance device 7 of the seventh embodiment, the presentation variable calculation unit 14 (24, 44) of the respiratory guidance device 7 of the fifth embodiment is replaced with a presentation variable calculation unit 74. It is.

[Presentation variable calculation unit 74]
The presentation variable calculation unit 74 of this embodiment is a processing unit configured by, for example, a predetermined program being read by the CPU. The presentation variable calculation unit 74 of the present embodiment inputs the reproduction speed information and the respiratory index, and presents a respiratory state specified by the corrected respiratory index obtained by correcting the respiratory index using a correction value depending on the reproduction speed information. The presentation variable information of is generated.

  For example, when the respiration index is the polar coordinate declination φ (t) in the phase space described above and the reproduction speed information is the sample update interval S (t), for example, the following equations (17) and (18) To generate presentation variable information x (t), y (t).

x (t) = C ・ cos (φ (t) + C4 ・ (S0-S (t)) / S0 + C5) + C6 (17)
y (t) = C2 ・ log (α (p (t))) + C3 (18)
However, C, C2, C3, C4, C5, and C6 are constants that satisfy | C | ≦ C6, C ≠ 0, C2> 0, and C3> 0, and log () is a logarithmic function. As described in the fifth embodiment, the reproduction speed information is information determined according to the respiration target information at the first set position. Therefore, the presentation variable information of the seventh embodiment generated using the reproduction speed information and the respiratory index is a guided respiratory state determined according to the respiratory target information at the first set position. For example, the sample update interval S (t) (reproduction speed information) exemplified in the fifth embodiment is in accordance with the respiration target information Φ (p (t1)) at the sample point τ = p (t1) (first set position). Information (see equations (11)-(13)). Therefore, the presentation variable information x (t) exemplified in Expression (17) is information determined according to the respiratory target information Φ (p (t1)) at the sample point τ = p (t1) (first setting position). It can be said.

<Method>
Next, the breathing induction method of this embodiment will be illustrated using FIG.

  The difference from the fifth embodiment is that the presentation variable information x (t), y (t) is generated using equations (17) and (18) instead of step S64.

[Other variations]
The present invention is not limited to the above-described embodiment.

  For example, the breathing target presenting unit 15 (25, 35) described above presents visual information and tactile information to the viewer 100. However, a device that presents auditory information to the viewer 100 may be used as the breathing target presenting unit.

  Further, in each of the above-described embodiments and modifications thereof, the content with respiratory target distribution in which the respiratory target information and the synchronization importance are associated with the sample points is illustrated. However, if the breathing target information and the synchronization importance are associated with any reproduction position, the breathing target information and the synchronization importance are not necessarily associated with the sample point. For example, the respiratory target information and synchronization importance may be distributed and recorded in the content with the respiratory target distribution at a frequency equal to (1 / natural number) times the sampling frequency of the content, or may be recorded at arbitrary intervals. May be. When recording at an arbitrary interval, for example, start point information for specifying the start point of the content information and respiration target information for the start point information and information for specifying the relative position Δ of the synchronization importance are included in the content with the respiration target distribution. Store it. Further, the respiratory target information and the synchronization importance need not be discrete data, and may be recorded in an analog manner. Further, the breathing target information and the synchronization importance need not be defined for the entire content, but may be defined for only a part thereof.

  Further, in each of the above-described embodiments and modifications thereof, the sample update interval is illustrated as a specific example of the reproduction speed information output from the reproduction speed calculation unit. However, this does not limit the present invention, and a signal that can adjust the reproduction time (speed) such as tempo information, frame position, and clock frequency may be used as the reproduction speed information.

  Moreover, in said 5th Embodiment and its modification, the respiration level was illustrated as a specific example of the respiration information output from a respiration measurement part. However, for example, the differential value of the respiratory level may be used as the respiratory information. The differential value of the respiratory level is obtained, for example, by detecting the respiratory airflow.

  Further, in each of the above-described embodiments and modifications thereof, MIDI data indicating the pitch and the intensity of sound is shown as a specific example of the content information. However, content data may be other data that specifies audio information or video information for viewing purposes, such as music, sound, moving images such as movies and television programs. In addition, the content playback speed control unit does not change the pitch or sound quality if sound, even if the playback speed changes, and playback time control processing that includes processing such as suppressing video disturbance due to frame advance or fast forward if video. It is desirable to do.

  Further, in the fifth embodiment and its modifications, each time the respiratory measurement unit outputs respiratory information, the respiratory index extraction unit generates a respiratory index, and the playback speed calculation unit determines the sample update interval. These processes may be performed at other timings. For example, the respiration measurement unit may generate a respiration index or a sample update interval at a cycle that is an integral multiple (twice or more) of the cycle T1 at which the respiration information is generated, or the playback position or respiration corresponding to the content information to be played back A breathing index or a sample update interval may be set for each target setting position.

  Each block in the block diagram illustrated in FIG. 1 is a conceptually divided processing section, and each block does not have to exist as an independent device. Moreover, each block does not need to be configured as one device, and may be distributed in a plurality of devices.

  In addition, the various processes described above are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Needless to say, other modifications are possible without departing from the spirit of the present invention.

[Features of each embodiment]
The effects obtained by each embodiment are listed.

  In all the embodiments and the modifications thereof, it is determined according to the respiration target information at the first set position which is any respiration target set position having a predetermined relationship with respect to each reproduction position corresponding to each content information to be reproduced. The “induced respiratory state” was physically presented along the time axis. This facilitates inducing the viewer's breathing state to the breathing state determined at each content playback position. As a result, there is a high possibility that the viewer's breathing can be guided to the breathing pattern intended by the content creator, and psychological effects such as a sense of unity and realism of the viewer's content can be improved.

  Further, in the second embodiment and each modification derived therefrom, any one of the synchronization importance setting positions having a predetermined relationship with each reproduction position corresponding to each piece of content information to be reproduced is the second position. The “synchronization importance” of the set position is presented. The synchronization importance indicates the importance of synchronizing the induced breathing state and the viewer's breathing state. By presenting this synchronization importance in proportion to the sensory amount, the synchronization at each playback position is indicated. Depending on the importance, it will be possible to display clearly.

  In the third embodiment, the induced breathing state and the synchronization importance are presented as tactile information instead of visual information and auditory information. In this case, it is possible to prevent the induced breathing state and the presentation of the synchronization importance from directly interfering with the contents including visual information and auditory information such as music and movies. As a result, there is a high possibility that the viewer's breathing can be guided to the breathing pattern intended by the content creator. That is, by making the type of physical phenomenon perceived by the viewer through reproduction of content information different from the type of physical phenomenon perceived by the viewer through presentation by the breathing target presentation unit, The possibility that the viewer's breathing can be guided to the pattern is increased.

  In the fifth embodiment, the breathing state specified by the breathing target information corresponding to the first setting position is close to the viewer's breathing state when the content information corresponding to the first setting position is reproduced. The playback speed for sequentially playing back each piece of content information corresponding to each playback position along the time axis is set. This not only guides the viewer's breathing state, but also allows the viewer to follow the playback speed of the content. That is, complementary adjustment is performed between the apparatus and the viewer, and the correlation between the set respiratory target and the importance of the respiratory target and the viewer's respiratory pattern can be increased.

  In the fourth and sixth embodiments, in consideration of the delay of the viewer's reaction time, the target induced breathing state is presented to the viewer in advance, for example, Δt seconds after the content playback position. This increases the possibility that the viewer's breathing can be guided to the breathing pattern intended by the content creator.

  In particular, in the sixth embodiment, in consideration of the playback speed of content that is sequentially updated, the target induced breathing state is presented to the viewer in advance after Δt seconds. Thereby, even if the reproduction speed changes, the target induced respiratory state can be accurately specified after Δt seconds.

  In addition, the induced respiratory state of the seventh embodiment is specified by a corrected respiratory index obtained by correcting the respiratory index using a correction value depending on reproduction speed information set in consideration of the respiratory target information or the synchronization importance. I was in a respiratory state. That is, in the seventh embodiment, the induced breathing state determined from the reproduction speed information based on the viewer's breathing state is presented. In other words, a state deviating from the viewer's breathing state in the direction desired to be guided was presented as the induced breathing state. As a result, the viewer's breathing and the induced breathing state presented are not extremely separated from each other, so that the viewer can present a more natural presentation.

[Program, data structure, recording medium]
When the above configuration is realized by a computer, the processing contents of the functions that each device should have are described by a program. The processing functions are realized on the computer by executing the program on the computer.

  Further, the program describing the processing contents and the content with the respiratory target distribution having the data structure described above can be recorded on a computer-readable recording medium. As the computer-readable recording medium, any recording medium such as a magnetic recording device, an optical disk, a magneto-optical recording medium, and a semiconductor memory may be used.

  The distribution of the program and the content with the respiratory target distribution is performed by selling, transferring, or lending a portable recording medium such as a DVD or a CD-ROM in which the program or the content with the respiratory target distribution is recorded. Furthermore, the program and the content with respiratory target distribution are stored in the storage device of the server computer, and the content with the respiratory target distribution is distributed by transferring the content with the respiratory target distribution from the server computer to another computer via the network. Also good.

  In each of the above-described embodiments, the present apparatus is configured by executing a predetermined program on a computer. However, at least a part of these processing contents may be realized by hardware. .

  1-7 Breathing guidance device

Claims (12)

Content information corresponding to each reproduction position along the time axis, and a respiratory target for specifying a predetermined periodic respiratory phase for each respiratory target setting position that is at least a part of the reproduction position A storage unit for storing content with respiratory distribution, including information;
When each content information corresponding to each playback position is sequentially played back along the time axis, any one of the respiratory target settings having a predetermined relationship with each playback position corresponding to each content information to be played back Generating presentation variable information for physically presenting along the time axis the induced breathing state, which is a phase of periodic breathing determined according to the breathing target information of the first set position that is the position, A presentation variable calculator for outputting information;
Respiratory target presentation that physically presents each induced respiratory state specified by the presentation variable information along the time axis when the presentation variable information is input and the content information is sequentially reproduced along the time axis. And
A respiratory induction device.   Content information corresponding to each reproduction position along the time axis, and respiration target information for specifying a respiration state predetermined for each respiration target setting position that is at least a part of the reproduction position, Including a storage unit for storing content with respiratory distribution,
  When each content information corresponding to each playback position is sequentially played back along the time axis, any one of the respiratory target settings having a predetermined relationship with each playback position corresponding to each content information to be played back A presentation variable calculation unit that generates presentation variable information for physically presenting the induced respiratory state determined according to the respiratory target information at the first set position, which is a position, along the time axis, and outputs the presentation variable information When,
  Respiratory target presentation that physically presents each induced respiratory state specified by the presentation variable information along the time axis when the presentation variable information is input and the content information is sequentially reproduced along the time axis. And
  A breathing index extracting unit for extracting a breathing index for specifying the viewer's breathing state from breathing information obtained by measuring the viewer, and outputting the breathing index;
  When the respiration target information and the respiration index are input and the respiration state specified by the respiration target information corresponding to the first set position is reproduced, the content information corresponding to the first set position is reproduced. In order to approach the viewer's breathing state, the playback speed for setting the playback speed when sequentially reproducing the content information corresponding to each playback position along the time axis and specifying the set playback speed is set. A playback speed calculator to output,
  A content playback control unit that receives the playback speed information and the content information as input, and outputs playback information for sequentially playing back each piece of content information corresponding to each playback position at a playback speed specified by the playback speed information; ,
  A respiratory induction device. The respiratory induction device of claim 2 ,
The content with respiratory distribution further includes a synchronization importance that is a coefficient predetermined for each synchronization importance setting position that is at least a part of the reproduction position,
The presentation variable calculation unit has a predetermined relationship with each reproduction position corresponding to each piece of content information to be reproduced when each piece of content information corresponding to each reproduction position is sequentially reproduced along the time axis. Generating the presentation variable information for physically presenting the synchronization importance of the second setting position which is any of the synchronization importance setting positions along a time axis;
When the content information is sequentially reproduced along the time axis, the breathing target presenting unit further physically presents each synchronization importance specified by the presentation variable information along the time axis.
A respiratory induction device characterized by that. The respiratory induction device according to claim 2 or 3 ,
The first setting position or the second setting position is located on the time axis after the reproduction position corresponding to each piece of content information to be reproduced.
A respiratory induction device characterized by that. The respiratory induction device of claim 2 ,
The presentation variable calculation unit further receives the playback speed information,
The first set position or the second set position is positioned later on the time axis by a value depending on the playback speed specified by the playback speed information than the playback position corresponding to each piece of content information to be played back. To
A respiratory induction device characterized by that. The respiratory induction device according to any one of claims 2 to 5,
The guided breathing state is a breathing state specified by the breathing target information defined for the breathing target information at the first set position.
A respiratory induction device characterized by that. The respiratory induction device of claim 2 ,
The presentation variable calculation unit receives the reproduction speed information and the respiratory index, and generates the presentation variable information for physically presenting the induced respiratory state along a time axis.
The induced respiratory state is a respiratory state identified by a corrected respiratory index obtained by correcting the respiratory index using a correction value that depends on the reproduction speed information.
A respiratory induction device characterized by that. The respiratory induction device according to any one of claims 1 to 7,
The content information is information constituting content for viewing purposes,
The type of physical phenomenon perceived by the viewer by reproduction of the content information is different from the type of physical phenomenon perceived by the viewer by presentation by the breathing target presentation unit.
A respiratory induction device characterized by that. Content information corresponding to each reproduction position along the time axis, and a respiratory target for specifying a predetermined periodic respiratory phase for each respiratory target setting position that is at least a part of the reproduction position Storing content with respiratory distribution in a storage unit, including information;
When each piece of content information corresponding to each playback position is sequentially played back along the time axis, the presentation variable calculation unit has any predetermined relationship with respect to each playback position corresponding to each piece of content information to be played back. Presenting variable information for physically presenting along the time axis the induced breathing state, which is a periodic breathing phase determined according to the breathing target information at the first setting position, which is the breathing target setting position. Generating and outputting the presentation variable information;
When the respiratory target presentation unit receives the presentation variable information as input, and the content information is sequentially reproduced along the time axis, each of the induced respiratory states specified by the presentation variable information is physically processed along the time axis. To present to
A respiratory induction method.   Content information corresponding to each reproduction position along the time axis, and respiration target information for specifying a respiration state predetermined for each respiration target setting position that is at least a part of the reproduction position, Including the step of storing content with respiratory distribution in the storage unit,
  When each piece of content information corresponding to each playback position is sequentially played back along the time axis, the presentation variable calculation unit has any predetermined relationship with respect to each playback position corresponding to each piece of content information to be played back. Generating presentation variable information for physically presenting along the time axis the induced respiratory state determined according to the respiratory target information at the first setting position, which is the respiratory target setting position. Output step;
  When the respiratory target presentation unit receives the presentation variable information as input, and the content information is sequentially reproduced along the time axis, each of the induced respiratory states specified by the presentation variable information is physically processed along the time axis. To present to
  A step of extracting a breathing index for specifying the viewer's breathing state from breathing information obtained by measuring the viewer, and outputting the breathing index;
  The content information in which the reproduction speed calculation unit receives the respiration target information and the respiration index, and the respiration state specified by the respiration target information corresponding to the first set position corresponds to the first set position Is set to a playback speed for sequentially reproducing each piece of content information corresponding to each playback position along the time axis so as to approach the viewer's breathing state at the time of playback. Outputting the specified playback speed information;
  The content playback control unit receives the playback speed information and the content information as input, and outputs playback information for sequentially playing back each content information corresponding to each playback position at the playback speed specified by the playback speed information. And steps to
  A respiratory induction method.   Content information corresponding to each reproduction position along the time axis, and a respiratory target for specifying a predetermined periodic respiratory phase for each respiratory target setting position that is at least a part of the reproduction position Storing content with respiratory distribution in a storage unit, including information;
  When each piece of content information corresponding to each playback position is sequentially played back along the time axis, the presentation variable calculation unit has any predetermined relationship with respect to each playback position corresponding to each piece of content information to be played back. Presenting variable information for physically presenting along the time axis the induced breathing state, which is a periodic breathing phase determined according to the breathing target information at the first setting position, which is the breathing target setting position. Generating and outputting the presentation variable information;
  When the respiratory target presentation unit receives the presentation variable information as input, and the content information is sequentially reproduced along the time axis, each of the induced respiratory states specified by the presentation variable information is physically processed along the time axis. And presenting to
  The content information is information constituting content for viewing purposes,
  The type of physical phenomenon perceived by the viewer by reproduction of the content information is different from the type of physical phenomenon perceived by the viewer by presentation by the breathing target presentation unit.
  A respiratory induction method characterized by that.   A program for causing a computer to function as the respiratory guidance device according to claim 1.

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