JP2021039386A - Reproduction control device, reproduction control system, reproduction control method, program, and recording medium - Google Patents

Abstract

To provide reproduction control device and system, a reproduction control method, program, and recording medium that can prevent a person from being confused or feeling uncomfortable when reproducing content, and can prevent an apparatus from malfunctioning in response to a voice recognition input .SOLUTION: A reproduction control device includes: a reproduction control unit 10 that controls reproduction of a sound source; and a specific sound detection unit 17 that detects a specific sound from the sound source. In a case where the specific sound has been detected from the sound source, the reproduction control unit performs acoustic processing on at least a portion including the specific sound in the sound source.SELECTED DRAWING: Figure 1

Description

The present invention relates to a reproduction control device for contents such as music, a reproduction control system, a reproduction control method, a program, and a recording medium.

Conventionally, when it is detected that duplicate music is stored in a portable audio player, it has been proposed to analyze the music and leave only the music with better sound quality (Patent Document). 1).

JP-A-2009-145465

Content including audio, such as music or video, includes environmental sounds such as siren sounds of ambulances or patrol cars, warning sounds or SOS sounds of Morse signals, which are heard in daily life, and sudden sounds. It may include sounds that people feel dangerous, such as braking sounds or shooting sounds, or human voices, such as lines.

For example, when playing content, a user who hears these sounds contained in the content may be confused or uncomfortable because it cannot be determined whether the sound is a sound in the real world or a sound in the content. .. Further, for example, it is possible that the sound in the content is picked up by a device that supports voice recognition input, and the device malfunctions.

For example, it is conceivable that a line is included in the content, the line is picked up by the device, and an unintended function is launched. In addition, there is a possibility that a siren is included in the content and the device that picks up the siren may erroneously display that an emergency vehicle is approaching.

The present invention has been made in view of the above points, and prevents people from being confused or uncomfortable when playing back content, and prevents devices that support voice recognition input from malfunctioning. One of the tasks is to provide a reproduction control device and a system capable of performing the reproduction control method, a program, and a recording medium.

According to the first aspect of the present invention, the reproduction control device includes a reproduction control unit that controls the reproduction of a sound source and a specific sound detection unit that detects a specific sound from the sound source. When the specific sound is detected in the sound source, the reproduction control device is characterized in that at least a portion of the sound source including the specific sound is subjected to acoustic processing.

Further, the invention according to claim 6 of the present application includes a sound source reading unit that reads a sound source, a specific sound detection unit that detects the specific sound from the read sound source, and a reproduction control unit that controls the reproduction of the sound source. The reproduction control unit is a reproduction control system characterized in that, when the specific sound is detected in the sound source, at least a portion of the sound source including the specific sound is subjected to acoustic processing. is there.

Further, in the invention according to claim 7, the reproduction control unit controls the reproduction of the sound source, the specific sound detection unit detects the specific sound from the sound source, and the reproduction control unit controls the reproduction of the specific sound. Is a method characterized by including a step of performing acoustic processing on at least a portion of the sound source including the specific sound when is detected in the sound source.
The invention according to claim 8 of the present application includes a step of controlling the reproduction of a sound source, a step of detecting a specific sound from the sound source, and a step of detecting the specific sound from the sound source. This is a reproduction control program for executing a step of performing acoustic processing on at least a portion of the sound source including the specific sound.

The invention according to claim 9 of the present application includes a step of controlling the reproduction of a sound source by a computer, a step of detecting a specific sound from the sound source, and a step of detecting the specific sound from the sound source. It is a computer-readable recording medium in which a program for executing a step of performing acoustic processing on at least a portion of a sound source including the specific sound is recorded.

It is a functional block diagram of the reproduction control device of this invention. This is an example of the operation routine of the specific sound detection unit. This is an example of the operation routine of the control unit. This is an example of the operation routine of the control unit. This is an example of displaying the music list screen. This is an example of user interface screen display.

Hereinafter, preferred examples of the present invention will be described. However, these may be appropriately modified and combined. Further, in the following description and the accompanying drawings, substantially the same or equivalent parts will be described with the same reference numerals.

Hereinafter, the reproduction control device 10 according to the first embodiment of the present invention will be described with reference to the accompanying drawings. The playback control device 10 is mounted on, for example, an optical disk player such as a CD player, an audio player such as a digital audio player, an information terminal device such as a mobile phone, a tablet, or a smartphone capable of sound reproduction, or a car navigation system.

FIG. 1 is a block diagram showing each functional unit of the reproduction control device 10 of the first embodiment. The sound source data reading / reproducing unit 11 as a sound source reading unit reads sound source data included in content such as music or moving images recorded on a sound source carrying medium such as a CD media, a DVD media, a flash memory, a magnetic storage medium, or a carrier. Play with.

The sound source data reading / reproducing unit 11 as the sound source reading unit may be, for example, an optical disk reading device (optical disk drive or the like) itself such as a CD or DVD, or may be communicably connected to these. Further, for example, it may have an interface with digital media such as a USB terminal or a wireless communication device such as a Wi-Fi communication device or a Bluetooth (registered trademark) communication device.

The sound source storage unit 13 is, for example, a storage device such as a hard disk, a flash memory, or an SSD, or a part of a storage area inside the device. The sound source storage unit 13 stores the sound source data reproduced by the sound source data reproduction unit 11. It is also possible that the sound source data reading / reproducing unit 11 transmits the sound source data itself to the sound source storage unit 13 and the sound source storage unit 13 stores the data.

The specific sound storage unit 15 is, for example, a storage device such as a hard disk, a flash memory, or an SSD, or a part of a storage area inside the device. The specific sound storage unit 15 is a device that supports sound that may confuse the user, sound that may make the user uncomfortable, or voice recognition input when it is emitted when playing back content including sound such as music or moving images. Specific sound information including a specific sound as a sound (for example, a voice such as a dialogue) that may malfunction is stored.

Specific sounds include environmental sounds such as telephone ringtones, siren sounds of ambulances or patrol cars, or emergency sounds such as warning sounds or SOS sounds of Morse signals that are heard in daily life. It may be. In addition, a sound that a person feels dangerous, such as a sudden braking sound, an impact sound, an explosion sound, or a shooting sound, may be included. In addition, a person's cry or a voice uttered by a person such as a line may be included.

The specific sound storage unit 15 can communicate with the external database DB in which the specific sound information is stored. Therefore, the specific sound storage unit 15 can access the external database DB and acquire the specific sound information in the external database DB. For example, the specific sound information in the external database DB is constantly updated, and the specific sound storage unit 13 can update its own specific sound information based on the specific sound information in the external database DB.

The specific sound detection unit 17 detects a specific sound stored in the specific sound storage unit 15 from the sound source data reproduced by the sound source data reading / reproducing unit. This detection may be performed, for example, by detecting whether or not a sound having the same or similar frequency component as the specific sound is included in the sound source data. In addition, when voice data such as dialogue is included in the sound source data, voice recognition is performed to wake it up in a character string, and it is detected whether or not there is the same voice as voice such as dialogue included in the specific sound in the character string. You may.

When the specific sound detection unit 17 detects a specific sound in the sound source data, the specific sound detection unit 17 analyzes the reproduction position of the specific sound in the sound source data and generates the specific sound and the specific sound detection information including the position information of the specific sound. And save it in the sound source storage unit 13. The position information of the specific sound includes, for example, the sound source data name including the specific sound, the name of the music including the specific sound (music name), and the start time and end time of the playback position including the specific sound in the music. (Elapsed time from the start of music playback) is included. This specific sound detection information may be stored as a set with the corresponding sound source data (sound source data for which the specific sound is detected in the specific sound detection information).

The playback control unit or the control unit 19 as a determination unit is a functional unit that reproduces the sound source data and displays information related to the sound source data. The control unit 19 is communicably connected to the operation display unit D such as the speaker S and the touch panel. The control unit 19 acquires sound source data from the sound source storage unit 13, reproduces the sound source data, and outputs an acoustic signal to the speaker S.

Further, the control unit 19 controls the reproduction of the sound source data in response to the operation input from the operation display unit D, for example. For example, the control unit 19 may control the reproduction, pause, or stop of the sound source data according to the operation input from the operation display unit D, or may adjust the volume of the output acoustic signal.

When the sound source data is reproduced, the control unit 19 acquires the specific sound detection information corresponding to the sound source data from the sound source storage unit 13. The control unit 19 controls the reproduction of the sound source data based on the acquired specific sound detection information. For example, when the sound source data is reproduced, the control unit 19 does not reproduce the music including the specific sound in the sound source data based on the specific sound detection information.

Further, for example, the control unit 19 may output the acoustic signal by adjusting the sound of the specific sound portion by muting or reducing the volume at the time of reproducing the sound source data. In addition, processing such as adding an acoustic effect to the sound of the specific sound portion may be performed to change the sound to a sound that does not affect the user and output the sound. That is, when the specific sound is detected in the sound source, the control unit 19 performs acoustic processing on the portion including the specific sound, including not reproducing the music including the specific sound.

Further, the control unit 19 cuts out a part of the sound source data in response to the input from the operation display unit D during the reproduction of the sound source data, and uses the sound included in the part as a specific sound as the specific sound storage unit 15. It may be possible to store in. Further, it may be possible to receive sound input from a microphone (not shown) connected to the control unit 19 and store the received sound as a specific sound in the specific sound storage unit 15.

[Specific sound detection routine]
The routine for detecting the specific sound, which is executed by the specific sound detection unit 17, will be described below. FIG. 2 shows a specific sound detection routine R1 which is an example of a routine executed when detecting a specific sound. The specific sound detection routine R1 is started, for example, when power is supplied to the reproduction control device 10.

When the routine R1 is started, the specific sound detection unit 17 first determines whether the sound source data is being reproduced for recording to the sound source storage unit 13 (step S1). This determination may be performed by determining whether or not the sound source reproduction data (or signal) has arrived from the sound source data reading / reproducing unit 11.

When the sound source data is being reproduced, the sound source data itself or the sound of the reproduced sound source data that has been re-data-processed is stored in the sound source storage unit 13. For example, when the sound source data is compressed data, the compressed data may be stored in the sound source storage unit 13 as it is at the time of reproduction by the sound source reading / reproducing unit 11. Further, the sound source data may be reproduced in an uncompressed state, and the uncompressed data or the compressed data obtained by recompressing the uncompressed data may be stored in the sound source storage unit 13.

When the sound source data includes one or a plurality of songs, a music list listing the songs included in the sound source data together with the sound source data may be generated and saved together with the sound source data.

When the specific sound detection unit 17 determines that the sound source data is not being reproduced (step S1: NO), the routine ends thereafter. When the specific sound detection unit 17 determines that the sound source data is being reproduced, the specific sound detection process is started (step S2).

As described above, the specific sound storage unit 15 may perform this detection process by, for example, detecting whether or not a sound having the same or similar frequency component as the specific sound is included in the sound source data. In addition, when voice data such as dialogue is included in the sound source data, voice recognition is performed to wake it up in a character string, and it is detected whether or not there is the same voice as voice such as dialogue included in the specific sound in the character string. You may. When the specific sound detection process is started, it is determined in step S3 whether or not the specific sound is detected (step S3). This determination may be performed by determining whether or not a specific sound has been detected in the detection process.

When the specific sound detection unit 17 determines that the specific sound has been detected in step S3 (step S3: YES), the specific sound detection unit 17 saves the position information of the detected specific sound in the sound source storage unit 13 (step S4). As described above, the position information of the specific sound includes, for example, the sound source data name including the specific sound, the name of the music containing the specific sound (music name), and the start time and end time of the specific sound in the music. Is included.

The specific sound detection unit 17 determines that the specific sound was not detected in step S3 (step S3: NO), or determines whether or not the sound source data being reproduced has been reproduced to the end after the execution of step S4. (Step S5). That is, it is determined whether or not the detection process of the specific sound has been performed until the end of the sound source data being reproduced. This determination is performed, for example, by determining whether or not the data indicating the end of the sound source data has been received, or whether or not the sound source reproduction data (or signal) has yet arrived from the sound source data reading / reproducing unit 11. You may.

When the specific sound detection unit 17 determines in step S5 that the sound source data has not been reproduced to the end (step S5; NO), the specific sound detection process is continued and step S3 is executed again.

When the specific sound detection unit 17 determines in step S5 that the sound source data has been reproduced to the end (step S5: YES), the specific sound detection process ends (step S6), and then the routine ends.

[Playback control routine 1]
The routine for reproducing the sound source data stored in the sound source storage unit 13 executed by the control unit 19 will be described below. FIG. 3 shows a reproduction processing routine R2 as an example of a routine for reproducing sound source data including one or a plurality of songs. The reproduction processing routine R2 is an example of a routine when a musical piece containing a specific sound is not reproduced. The reproduction processing routine R2 is started, for example, when power is supplied to the reproduction control device 10.

When the routine R2 is started, the control unit 19 determines whether or not the reproduction start operation has been accepted (step S1). This determination may be performed, for example, by determining whether or not the operation display unit D has accepted the playback start operation from the user.

When the control unit 19 determines in step S1 that the reproduction start operation has not been received (step S1: NO), the routine ends thereafter. When the control unit 19 determines that the reproduction start operation has been accepted in step S1 (step S1: YES), the control unit 19 starts the reproduction process of the sound source data stored in the sound source storage unit 13 (step S2).

After executing step S2, the control unit 19 determines whether or not the music to be reproduced is a music including a specific sound. This determination may be made by referring to the specific sound detection information stored in the sound source storage unit 13 and the specific sound detection information corresponding to the reproduced data currently being reproduced.

When the control unit 19 determines in step S3 that the music to be played is a music containing a specific sound (step S3: YES), the control unit 19 does not play the music and the music is the last in the sound source data. (Step S4). That is, it is determined whether or not there is a musical piece that has not yet been played in the sound source data. This determination may be performed by referring to, for example, a music list created when the sound source data is stored and stored in the sound source storage unit 13 together with the sound source data.

In step S4, when the control unit 19 determines that the music to be reproduced is the last music (step S4: YES), the control unit 19 ends the reproduction process (step S5), and then the routine ends.

In step S4, when the control unit 19 determines that the song to be played is not the last song (step S4: NO), the control unit 19 searches for the next song to be played (step S6), and then , Step S3 is executed again for the music to be played next.

In step S3, when the control unit 11 determines that the music to be reproduced is not a music containing a specific sound (step S3: NO), the control unit 11 reproduces the music (step S7).

After executing step S7, the control unit 11 determines whether or not the music being played has ended (step S8). When the control unit 11 determines in step S8 that the music being played is not finished (step S8: NO), the control unit 11 continues playing the music, and executes step S8 again after a lapse of a certain period of time, for example.

When the control unit 11 determines in step S8 that the music being played has ended, the control unit 11 executes step S4 and determines whether or not the music being played is the last music in the sound source data.

[Playback control routine 2]
The routine for reproducing the sound source data stored in the sound source storage unit 13 executed by the control unit 19 will be described below. FIG. 4 shows a reproduction processing routine R3 as an example of a routine when reproducing sound source data including one or a plurality of songs. The reproduction processing routine R3 is an example of a routine in which the sound of the portion including the specific sound in the music is muted and reproduced. The reproduction processing routine R3 is started, for example, when power is supplied to the reproduction control device 10.

When the routine R3 is started, the control unit 19 determines whether or not the reproduction start operation has been accepted (step S1). This determination may be performed, for example, by determining whether or not the operation display unit D has accepted the playback start operation from the user.

When the control unit 19 determines in step S1 that the reproduction start operation has not been received (step S1: NO), the routine ends thereafter. When the control unit 19 determines that the reproduction start operation has been accepted in step S1 (step S1: YES), the control unit 19 starts the reproduction process of the sound source data stored in the sound source storage unit 13 (step S2).

After executing step S2, the control unit 19 determines whether or not to end the reproduction (step S3). This determination may be performed, for example, by determining whether or not the operation display unit D has accepted the reproduction end (reproduction stop) operation from the user. Further, for example, this determination may be performed by determining whether or not the sound source being reproduced has been reproduced to the end.

When the control unit 19 determines that the reproduction is finished (step S3: YES), the routine ends thereafter. When the control unit 19 determines that the reproduction is not completed (step S3: NO), the control unit 19 determines whether or not the current reproduction time point is the start point of the specific sound portion, that is, the portion including the specific sound (step S4). .. That is, it is determined whether or not the specific sound portion has started. When the control unit 19 determines that the current reproduction time point is not the start point of the specific sound portion (step S4), the control unit 19 executes step S3 again to determine whether or not to end the reproduction.

When the control unit 19 determines that the current playback time point is the start point of the specific sound portion (step S4: YES), the control unit 19 stops the output of the acoustic signal of the sound source being reproduced or mutes the volume of the acoustic signal (step S4: YES). To 0) (step S5). That is, the output of the acoustic signal is controlled so that no sound is output from the speaker S.

It should be noted that the acoustic signal may be output by adjusting the volume such as reducing the volume when reproducing the specific sound portion. In addition, processing such as adding an acoustic effect to the sound of the specific sound portion may be performed to change the sound to a sound that does not affect the user and output the sound. That is, when the specific sound is detected in the sound source, the control unit 19 may perform acoustic processing on the portion including the specific sound.

For example, the frequency component may be changed so that the sound of a specific sound portion such as a siren does not surprise the user or is not jarring to the user.

After executing step S5, the control unit 19 determines whether or not the current playback time point is the end point of the specific sound portion (step S6). That is, it is determined whether or not the specific sound portion is completed. When the control unit 19 determines that the current reproduction time point is not the end point of the specific sound portion (step S6: NO), the control unit 19 repeatedly executes step S6 until the end point of the specific sound portion is reached.

When the control unit 19 determines that the current playback time point is the end point of the specific sound portion (step S6: YES), the control unit 19 releases the mute (step S7), and executes step S3 again.

According to the playback control device of the present embodiment, there is a sound that may confuse or offend the listener in the sound source, or a sound that may cause the device corresponding to the voice recognition input to malfunction. When a specific sound is included, it is possible to prevent the specific sound from being emitted from a speaker or the like.

This makes it possible to prevent the user listening to the sound source from being confused or uncomfortable. Further, it is possible to prevent a device corresponding to the voice recognition input in the vicinity of the speaker from which the reproduced sound of the sound source is output from malfunctioning when the sound source is reproduced.

[Other examples, etc.]
-Playback while reading the sound source data In the above embodiment, the sound source data is read from the outside, the entire read sound source is temporarily saved in the sound source storage unit 13, and then the saved sound source is played back and played back. The case where the acoustic signal of the sound is output to the speaker S has been described as an example. However, there may be a case where the sound source data from the outside is read, the sound source is reproduced while being stored in the read sound source storage unit 13, and the acoustic signal of the reproduced sound is output to the speaker S.

In this case, the sound source data read from the sound source data reading / reproducing unit 11 is buffered by the sound source storage unit 13 for a predetermined length, and the specific sound detection unit 17 detects the specific sound and the specific sound detection information for the buffered portion. The save is done. After that, the control unit 19 performs reproduction control such as the reproduction control routine R2 or R3 described above based on the sound source data of the buffer portion and the specific sound detection information of the buffer portion, and the sound source while excluding the specific sound. The acoustic signal of the reproduction and the reproduction sound may be output.

At this time, when the buffer for the predetermined length and the detection of the specific sound are completed, the next buffer for the predetermined length and the specific sound are detected, and this is repeated until the end of the sound source. When it is not necessary to save the read sound source data in the sound source storage unit 13, when the buffer portion is reproduced by the control unit 19, the buffer portion may be deleted thereafter. Further, the unit of the buffer portion may be a predetermined length unit or a music unit.

-Music list When the sound source data is reproduced, the music list control unit 19 may display the music list, which is a list of the music included in the reproduced sound source data, on the operation display unit D. FIG. 5 shows an example of displaying the music list screen. As shown in FIG. 5, in the music list, the music (tracks) can be displayed arranged in the order of being played from top to bottom. In this display, for example, when the track 3 contains a specific sound, the user may be notified of this via the operation display unit D by setting the track 3 as a shaded display.

As described above, when the sound source data from the outside is read, the sound source is reproduced while being saved in the read sound source storage unit 13, and the acoustic signal of the reproduced sound is output to the speaker S, the reproduction is started. At that time, the presence or absence of a specific sound is known only for a part of the music included in the sound source. In such a case, as soon as it is found that the music contains the specific sound, the user may be notified that the music includes the specific sound by shading the display of the music.
-Addition of specific sound In the above embodiment, the case where the specific sound storage unit 15 can update the specific sound based on the information in the external database DB has been described as an example, but the reproduction control device 10 receives input from the user. A specific sound may be added.

For example, the user may input a sound through a microphone (not shown) connected to the control unit 11 and store the sound as a specific sound in the specific sound storage unit 15. For example, examples of the sound input in this way include a ring tone of a user's mobile phone or smartphone.

In addition, when the user listening to the reproduced sound finds a part that is confusing or unpleasant while playing the sound source data, the user cuts the part and sets the cut part as a specific sound. It may be possible to store the sound in the specific sound storage unit 15. An example of the user interface screen in this case is shown in FIG.

As shown in FIG. 6, the user interface screen (specific sound registration screen) displayed on the operation display unit D includes, for example, a music display unit 31 on which the title and artist name of the music are displayed. In addition, the user interface screen includes an operation button display unit 33 on which a "play button", a "pause button", and a "stop button" are displayed. Further, on the user interface screen, an elapsed time display unit 35 that displays the elapsed time from the start of the music, a seek bar 37 that indicates the time of the entire music, and a slider 37A that moves along the seek bar 37 with the passage of the playback time. Is included. It also includes a cutout button 39, which is used when the user cuts out a portion to be saved as a specific sound.

The user may cut out the specific sound, for example, by pressing the cutout button 39 at the end of the sound to be cut out as the specific sound during playback of the sound source, that is, at the end point of the specific sound. In this case, for example, while the cutout button is being pressed, the sound source is quickly rewound, and the cutout button is released at the start point of the sound that the user wants to cut out as a specific sound, so that the portion can be saved as a specific sound.

Further, the user simply presses the cutout button 39 at the start point of the sound to be saved as a specific sound, and the user presses the cutout button 39 again at the end point of the sound, so that the sound between the start point and the end point is saved as the specific sound. It may be done.

Further, the specific sound saved by the user may be uploaded to the external database DB, and the specific sound may be shared by a plurality of users.
-Cloudization In the above embodiment, an example in which the specific sound storage unit 15 and the specific sound detection unit 17 are included in the reproduction control device 10 has been described, but the specific sound storage unit 15 or the specific sound detection unit 17 may be used. It may be provided in an external server or the like.

In this case, the sound source data read and reproduced by the sound source data reading / reproducing unit 11 may be transmitted to the external server, and the specific sound detecting unit may detect the specific sound at the external server. Then, the detection result may be transmitted to the reproduction control device 10 and stored in the sound source storage unit 13. That is, one or more of the functional units in the reproduction control device 10 described in the above-described embodiment may be provided outside the reproduction control device 10, and the above-mentioned functional units as a whole construct a reproduction control system. You may be doing it.

By doing so, the number of processes performed by the reproduction control device 10 is reduced, and it is possible to achieve simplification of the reproduction control device 10, reduction of required specifications, and reduction of power consumption.

The various configurations, routines, and the like in the above-described embodiment are merely examples, and can be appropriately selected or combined according to the intended use and the like.

10 Playback control device 11 Sound source data reading / playback unit 13 Sound source storage unit 15 Specific sound storage unit 17 Specific sound detection unit 19 Control unit D Operation display unit S Speaker

Claims (1)

A playback control unit that controls the playback of the sound source,
Including a specific sound detection unit that detects a specific sound from the sound source,
The reproduction control unit is a reproduction control device, characterized in that, when the specific sound is detected in the sound source, acoustic processing is performed on at least a portion of the sound source including the specific sound.

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