JPH11355870A - Low-frequency sound reproducing device of body sensation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide at a low cost a low-frequency sound reproducing device of body sensing system that is made very small and light, simply in use, and from which a sense of ultra-low frequency sound is obtained without causing fatigue or sense of incongruity, even in the case of use over a long time. SOLUTION: This device consists of an amplifier 2 that supplies a low-frequency sound frequency audio signal and a shaker 1 that transduces the low-frequency sound audio signal from the amplifier 2 into body sensing acoustic vibration. The shaker 1 is an electric mechanical vibration converter has a contact part with a size suitably applying the body sensing acoustic vibration concentrating to part of a human body, the contact part of the shaker 1 is pressed into contact with and supported by an 'effective pressure spot' 3 on which circulatory systems of the human body are concentrated so as to deliver the body sensing acoustic vibration to the human body. The 'effective pressure spot' named ROKYU which is present in the middle of a palm or a 'effective pressure spot' present in the center of an inside of a wrist is recommended for the 'effective pressure spot' 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bodily sensation type bass reproduction for an audio-visual device, a stereo reproduction device, etc., in order to make the body perceive acoustic vibrations, and in particular to increase a super bass sensation for listening. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, in order to obtain a sufficient ultra-low tone in an AV device and a stereo reproducing device, it is not sufficient to simply listen to a large volume of ultra-low sound by hearing. The ultra-low sound in the band is caused by the mechanical vibration of surrounding objects that come into contact with the human body, such as a floorboard, caused by the effect of the sound pressure of the reproduced sound waves, in addition to the stereo reproduction sound normally reproduced from speakers or headphones. It is known that sensing with is effective. Representative examples of the bass reproducing device based on such a technical idea include:
A means for providing a vibrator to an object that comes into direct contact with the body, such as a chair, and transmitting a mechanical vibration generated by applying a low-range audio signal to the vibrator to obtain an ultra-low-pitch feeling;
2. 2. As a simple means, a vibrator for obtaining an ultra-low frequency mechanical vibration is sandwiched between palms of both hands, and the generated mechanical vibration is sensed by the palm. There is also an attempt to imitate and modify this means so that the rod protrudes from the vibrator and obtain a very low-pitched sound by picking the rod with a fingertip (both are not shown).

[0003]

SUMMARY OF THE INVENTION Among the above-mentioned conventional systems, one of the following: However, there is a problem in that the vibrator becomes large and a high-power low-frequency audio signal needs to be applied, so that the apparatus becomes expensive and cannot be easily installed. Meanwhile, 2. The means of 1. Although it is easy and inexpensive as compared to the means of the above, there is a drawback that during listening to the reproduced sound, the unnatural state of holding the vibrator between the palms of both hands for a considerably long time must be maintained. . Further, 3. The above method has a problem to be solved in that merely grasping the rod protruding from the vibrator with the fingertip simply vibrates the fingertip, and the vibration is not transmitted to the perception center through the body, and the effect itself is doubtful. Was.

Accordingly, an object of the present invention is to solve the problem of the conventional low-frequency sound reproducing apparatus of the bodily sensation type, and to concentrate on a special part of the body where meridians concentrate. By applying ultra-low frequency mechanical vibration,
It is an object of the present invention to provide a low-frequency sound reproducing apparatus of a sensation type that is extremely small, lightweight, inexpensive, easy to use, and capable of providing an ultra-low sound sensation without causing fatigue or discomfort even when used for a long time.

[0005]

Means for solving the problem The structure of the present invention adopted to achieve the above object will be described with reference to the reference numerals used in the embodiments. An amplifier 2 for supplying an audio signal, and a vibrator 1 for converting a low-range audio signal from the amplifier 2 into bodily-acoustic vibration, the vibrator 1 being an electromechanical vibration converter, Having a contact portion 11 of a size suitable for intensively applying acoustic vibration to a part of a human body,
The vibrator 1 is held in contact with a “pot” 3 where the meridian existing in the human body is concentrated at the contact portion 11 to transmit the sensible acoustic vibration to the human body.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has the above-described structure, and will be described with reference to the reference numerals used in the drawings showing the structure of the embodiment. In implementing the device, the vibrator 1 may use a movable magnet type electromechanical vibration converter. As a specific structure, a magnet 13 magnetized in the axial direction is provided inside a hollow cylindrical coil 12 at both ends thereof with springs 14 and 14, respectively.
14 and inserted. Two magnets 13 are used to perform a push-pull operation in order to increase the sensitivity of the converter, and are arranged in a direction in which the magnetic pole directions are opposed to each other with a spacer 15 interposed therebetween to form an integrated magnet system. Further, the springs 14 and 14 are disposed one by one at both ends of the integrated magnet system, and the ends thereof are
To form a vibration system with the magnet. in this case,
Increasing the length of the springs 14, 14 has the effect of lowering the resonance frequency of the vibration system, enabling vibration with a large amplitude, and increasing the bass feeling. Also, the hollow coil 1
The length of 2 in the axial direction is set so that the portion of the spacer 15 of the magnet system, that is, the portion where the line of magnetic force radially interlinks with the coil 12 at the required maximum amplitude does not come off from the coil 12, and Both ends of the magnet system, ie, each magnet 13, 1
3 is the coil 1 on the side opposite to the spacer 15 side.
2 is set so that it does not enter the inside of the device.
In addition, the material of the spacer 15 may be any material regardless of magnetic or non-magnetic.

The vibrating system vibrates in the axial direction by a driving force generated by Fleming's left-hand rule with respect to a voice current flowing through the hollow coil 12. The reaction force due to this vibration causes the outer case 16 to vibrate.
The end face portion facing the vibration direction of 6 is in contact with the human body 5.
And it is sufficient. The vibrator 1 of the present invention having the above structure has a cylindrical shape and can be assembled in a small size, and furthermore, vibrates in the axial direction. On the other hand, a vibration transmission area can be obtained.

The vibrator 1 is not limited to the above-described movable magnet type, but may be a movable coil type, an electromagnetic type, a linear motor type, or the like.
It goes without saying that other types of electromechanical vibration transducers may be used. However, the above-mentioned movable magnet type electromechanical vibration transducer is preferable because it has a simple structure, is inexpensive, has high conversion efficiency, and is robust.

An amplifier 2 for supplying a bass sound audio signal
Can use a power amplifier having a normal structure. The low-range audio signal Lo is separated from the output signal of the stereo reproduction device 6 by the filter 21, amplified by the amplifier 2 and input to the vibrator 1. Or, conventionally used,
For example, an ultra-low frequency reproduction amplifier for driving a super woofer may be used.

In general, the meridians in the human body extend from the palm to the soles of the body, and the point at which the meridians concentrate is generally called a "pot", and the most effective "pot" where the meridians concentrate at the palm. Is called Lagu, located in the center of the palm.
Also, it has been found that the same effect can be obtained by using a “pot” 3 at the center on the inner side of the wrist as the “pot” 3 other than the labor shrine. The present inventor has focused on a phenomenon in which even if the entire palm is pressed evenly in the acupressure therapy, there is no effect, and a significant acupressure effect can be obtained by pressing the “pot”. It has been found that an excellent bass feeling can be obtained by intensively applying low frequency vibration to the "pot" 3 where effective meridians are concentrated, i.e., the labor shrine. Based on this fact, the above-described vibrator 1 holds the contact portion 11 in contact with the “pot” 3 where the meridian existing in the human body 5 is concentrated, and effectively transmits the bodily-acoustic vibration to the human body. I do.

In order to obtain a sufficient bass feeling using the reproducing apparatus of the present invention, it is necessary to apply bass vibration so as to intensively drive the "pot" 3 existing in the lane or the wrist. In the vibrator 1 of the present invention, since the contact portion 11 is set to a size suitable for intensively applying the bodily-acoustic vibration to a part of the human body 5, it is used in combination with a normal stereo reproduction reproduced by a speaker. This enables powerful ultra-low frequency reproduction. Further, when the stereo playback is listened to by the headphones 7, if the playback device of the present invention is used in combination, the same powerful realism as in the case where the sound is played back at a large volume without leaking the sound to the outside can be obtained. In addition, the exciter 1 is used as a “pot”
By turning the palm in contact with the body in front of the body and placing it in Tanda, the user feels that there is a low sound source near Tanda, and a further bass effect can be obtained. Moreover, the above-described powerful bass effect is characterized in that it can be obtained only by attaching the vibrator 1 to one of the palms.

In order to continuously press the contact portion 11 of the vibrator 1 against the “pot” 3 of one of the palms, the vibrator 1 may be held and pressed by the other arm. Without doing
In addition, it is necessary that the arm can be moved freely and that no effort is required to push the arm so that the user is not conscious of the use. For this purpose, a holder 4 such as a rubber band or a wristwatch band is used. do it.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is a perspective view of a main part of the first embodiment,
FIG. 2 is a cross-sectional view of the vibrator 1, FIG. 3 is an explanatory view of a state in which the vibrator 1 is pressed and held on a "pot" 3 where meridians are concentrated, and FIG. It is.

As shown in FIG. 2, the vibration exciter 1 of the first embodiment is a movable magnet type electromechanical vibration transducer, and is magnetized in a cylindrical hollow coil 12 in an axial direction. Magnet 1
Two magnets 3 are arranged in a direction in which the magnetization directions are opposed to each other with a spacer 15 interposed therebetween to form an integrated magnet system, and the magnet system is separated from the outer case 16 by springs 14 at both ends thereof. It is supported so as to be able to vibrate in the axial direction to form a vibration system. In this case, as described above, by increasing the lengths of the springs 14, 14, the resonance frequency of the vibration system is reduced, and vibration with a large amplitude is possible, thereby increasing the sense of low pitch. The axial length of the coil 12 is:
At the required maximum amplitude, the portion of the magnet system spacer 15, that is, the portion of the S pole of the magnet whose magnetic field lines radially interlink with the coil 12 does not come off the coil 12, and both ends of the magnet system Part, that is, the N pole part of each magnet 13, 13 does not enter the inside of the coil 12,
The end of the coil 12 is set at a position between the S pole and the N pole of each magnet.

The vibrating system vibrates in the axial direction by a driving force generated in accordance with Fleming's left-hand rule with respect to the audio current flowing through the hollow coil 12. The reaction force due to this vibration causes the outer case 16 to vibrate.
The end face portion facing the vibration direction of 6 is in contact with the human body 5.
And The vibrator 1 is connected to the amplifier 2 as shown in FIG. 1, and the contact portion 11 is brought into contact with the “pot” 3 where the meridian existing in the palm of the human body 5 is concentrated, and the sound is reproduced together with the sound reproduced by the stereo reproducing device 6. Listen. In the block connection diagram of FIG. 1, the listening of the reproduction sound of the stereo reproduction
And reproduction of the headphones 7 are simulated and overlapped.
Although not shown, by turning the palm with the vibrator 1 forward of the body and approaching the vicinity of Tanda, the user feels that there is a low sound source near Tanda, and further lowers the sound. The effect can be obtained as described above.

FIG. 3 shows a state in which the vibrator 1 is pressed and held on the “pot” 3. In this embodiment, a band used for a wristwatch is used as the holder 4 and the outer case 16 is used.
A band is attached by devising the above structure, so that the contact portion 11 of the vibrator 1 comes into contact with the “pot” 3, that is, the palm's labor hall, and the band is fitted and held on the palm. Alternatively, as a modified example, as shown in FIG. 4, a wide rubber band is used as the holder 4. In this modified example, a rubber band to which the vibrator 1 is attached is fitted on a wrist, and is in contact with a “pot” of a wrist different from Lagu. Alternatively, the rubber band may be divided on the back of the palm and joined by a planar fastener to form a ring (not shown).

The embodiments which are considered to be representative of the present invention have been described above. However, the present invention is not necessarily limited to the structures of the embodiments, but has the above-mentioned constitutional requirements according to the present invention, and The present invention achieves the object of the present invention and can be appropriately modified and implemented within the range having the following effects.

[0018]

As is clear from the above description, the low-frequency sound reproducing apparatus of the sensation system according to the present invention uses a vibrator having a simple structure as a part that comes into contact with the body, so that it is small, light and inexpensive. Yes, and the usage is very simple because the contact part of the vibrator simply touches the "pot" at the center of the palm or wrist where the meridians of the body are concentrated.
When used in combination with a conventional stereo playback device, it is possible to obtain a super-low-pitched sound without causing fatigue or discomfort even when used for a long time. Also, when used in conjunction with a headphone stereo, the reproduced sound will not leak to the outside, so there is no fear of disturbing the surroundings, and without being troubled by the noise from the surroundings, it is possible to reproduce the stereo with a large volume. You can enjoy powerful playback sound with the same feeling.

Further, by utilizing the characteristic that the rhythm of the sound quality of the present apparatus can be easily recognized, the present apparatus is also effective as a listening apparatus for music by a relaxation apparatus and as an auxiliary apparatus for karaoke.
In addition, the vibrator has an effect that it can be used as a vibration calling device such as a mobile phone.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a first embodiment.

FIG. 2 is a cross-sectional view of the vibrator 1.

FIG. 3 is an explanatory diagram of a state in which a vibrator 1 is pressed and held at a concentration point 3;

FIG. 4 is an explanatory view of a modification of the means for pressing and holding the vibrator 1 at the concentration point 3.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibrator 11 Contact part 12 Hollow coil 13 Magnet 14 Spring 15 Spacer 16 Outer case 2 Amplifier 21 Low-pass filter 3 Concentration point 3 4 Holder 5 Human body 6 Stereo playback device 7 Headphones 8 Speaker

Claims (4)

[Claims] 1. An amplifier for supplying a bass audio signal.
(2), a vibrator (1) for converting the low-frequency audio signal from the amplifier (2) into bodily-acoustic vibration, the vibrator (1) is an electromechanical vibration converter, Contact part with dimensions suitable for intensive application of bodily audible vibration to a part of the human body
`` Pot '' which has (11) and concentrates meridians existing in the human body
(3) A sensation-type bass sound reproducing device that holds a contact portion (11) of the vibrator (1) in contact with and transmits the sensation-acoustic vibration to a human body to give a listener a low-pitched sound. 2. An amplifier for supplying a bass audio signal.
(2) and a vibrator (1) for converting the low-frequency audio signal from the amplifier (2) into bodily-acoustic vibration, and the vibrator (1) is a movable magnet type electromechanical vibration converter. Vessel
A hollow coil (12) is coaxial inside a cylindrical outer case (16) whose bottom surface is a contact portion (11) of a size suitable for intensively applying the sensible acoustic vibration to a part of the human body. And the two magnets (13) and (13) are fixedly integrated with the inside of the coil (12) with the magnetic pole directions facing each other with a spacer (15) interposed therebetween. Both ends of the vibrator are attached to the outer case (16) via springs (14) and (14) so as to be able to vibrate. A sensation-type bass sound reproduction device that gives a listener a low sensation by transmitting the sensation sound vibration to a human body by holding the contact portion (11) of (1) in contact with the contact portion. 3. The sensation-based bass reproduction apparatus according to claim 1, wherein the “pot” (3) of the human body is a “pot” located at the center of the palm. 4. The sensation-based bass reproducing apparatus according to claim 1, wherein the “pot” (3) of the human body is a “pot” located at a central portion inside a wrist.