JPH06324685A - Sound diffusion preventing device - Google Patents

Abstract

PURPOSE:To provide a sound diffusion preventing device used in a KARAOKE (accompaniment to recorded music) so as not to trouble the neighborhood even in the case of singing a song loudly. CONSTITUTION:A projection port 16 for a microphone functioning as a sound transmitting means is provided on one end side of a funnel-shaped cover main body 12 whose other end is made an aperture being a large-diameter part. A sound absorbing material 20 is attached to the inner wall of the cover main body 12, and small holes are bored on the wall surface around the projection port 16 for projecting the microphone so as to be a pressure reducing means for reducing sound pressure in the cover main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice diffusion preventing device which is improved so as not to leak a singing voice to the outside.

[0002]

2. Description of the Related Art Since anyone can sing like a singer, karaoke, in which only accompaniment is recorded on tape or records, is popular. Since karaoke equipment is relatively inexpensive to obtain,
Often privately owned and enjoyed and practiced at home. Although this karaoke is fun for the person, it is also a noise and annoyance for others. Therefore, conventionally, the sound volume of the karaoke apparatus has been reduced to reduce the sound, or to sing with a small voice.

[0003]

In practicing karaoke, even if the volume of the device is turned down, the voice itself emitted toward the microphone is heard by the neighbors, which causes noise. Also, singing in a small voice was neither fun nor fun to practice. The present invention has been made to solve such a problem, and an object of the present invention is to provide a voice diffusion preventing device that does not cause trouble to the neighbors even when singing in a loud voice.

[0004]

In order to solve the above problems, the present invention has the following configuration. On the other end side of the funnel-shaped cover body having one end opened, a projection opening for a microphone as a sound transmitting means was provided. A sound absorbing material was attached to the inner wall of the cover body, and small holes were provided in the wall surface around the projecting opening for the microphone to serve as a pressure reducing means in the cover body.

[0005]

[Function] The microphone and this device are integrated by projecting the grip portion of the microphone from the projecting opening of the cover body. When singing, by covering the area around the mouth with the opening, the generated sound does not leak to the outside of the cover body and the diffusion of the sound can be prevented. Further, if the player continues to sing in the cover body, the inside becomes pressurized and cannot sing, so the small holes provided on the wall surface are used to reduce the pressure to facilitate singing.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view showing a sound diffusion preventing device of the present invention, FIG. 2 is a perspective view seen from the back side of FIG. 1, and FIG.
FIG. 2 is a partially cutaway perspective view showing FIG. 1 in an exploded manner. As shown in FIG. 1, a sound diffusion preventing device 10 of the present invention comprises a cover body 12 formed in a substantially funnel shape and a sound absorbing material 20 attached to an inner wall surface of the cover body. The cover body 12 and the sound absorbing material 20 will be described in more detail. The cover body 12 has a large-diameter portion having an opening 14 at one end,
It is funnel-shaped with the other end having a small diameter portion and a cylindrical projecting port 16. The opening 14 is of a size that covers the periphery of the vocalizing mouth, and the protruding portions 15 are arranged facing a part of the opening. By closely contacting the projecting portion 15 with the cheek, the sound is further prevented from leaking to the outside. The material of the cover body 12 is preferably a deformable soft material such as rubber, but when a hard material is used, the opening 14
If a band-shaped cover 13 made of a soft material such as rubber is provided around the skin, the adhesion to the skin is improved. The projecting port 16 is a place for projecting a part of a microphone used as a sound transmitting means for inputting sound to the karaoke device. Further, the cover body 12 around the projecting port 16 is provided with a small hole as a pressure reducing means 18 in the cover body. The small hole as the decompression means 18 is a vent hole when a voice is uttered in the cover body, and although it depends on the size, it is sufficient to provide about 2 to 3 holes of about 3 to 4 mm. You may increase or decrease according to it. As shown in FIG. 3, the sound absorbing material 20 is generally used synthetic resin or fibrous material, such as felt, and is formed so as to contact the inner wall surface of the cover body 12. Therefore, the shape thereof is also substantially the same as that of the cover main body 12, and the hole 22 and the cylindrical shape are provided at the positions corresponding to the small holes as the pressure reducing means 18 provided in the cover main body and the projecting opening 16 for protruding a part of the microphone. And a projecting port wall 21 of each.

A voice diffusion prevention device 1 thus formed
An example of using 0 will be described with reference to FIG. FIG. 4 is an explanatory diagram showing an example of use of FIG. As shown in FIG. 4, the lead wire 27 side provided in the microphone 25 as the voice transmitting means is inserted into the voice diffusion preventing device 10 from the opening 14 side first. Microphone handle 26
The part is exposed from the projecting port 16, but the spherical tip end that receives the sound wave is located inside the cover body 12, and the handle 26 part of the microphone and the projecting port 16 are brought into close contact with each other so that they are integrated. It That is, the sound diffusion prevention device 10
Is used so as to cover the tip end portion of the microphone that receives the sound wave, and means for coping with the insertion of microphones having different thicknesses to be inserted into the projecting opening 16 portion, or for integrating. It becomes easier to use by providing a fixing means or the like. The voice diffusion prevention device 10 and the microphone 25 combined as shown in FIG. 4 are used as follows. A karaoke device (not shown) listens to the accompaniment and the singing voice of himself using earphones without operating the speaker. Then, the pair of protrusions 15 provided in the opening 14 sing while holding the microphone handle 26 while covering the area around the mouth so as to hit both cheeks. The singer's nose is the cover body 1
2 is outside and is in an exposed state, and the sound pressure generated in the cover body by singing is reduced by the pressure reducing means 18
Since it goes out through the small hole, it is not difficult to suffocate or sing. Since the singing voice is covered by the cover body with sound absorbing material, it has little influence on the surroundings, and only a small amount of sound leaks from the decompression means 18, and it is a small sound that does not cause much trouble. Since the speaker does not work in the karaoke device, there is nothing that produces a sound, and even if there is a person in the same room, it does not cause any inconvenience, so there is no effect on the next room or the neighborhood. Therefore,
Even if you sing in a loud voice, you will not bother others.

[0008]

As described above, according to the present invention, many effects can be obtained by singing in the cover body that covers the microphone. That is, since the accompaniment and his / her own song were heard using the earphones without operating the speaker of the karaoke device, and the singing voice was absorbed in the cover body, almost no noise was generated. According to this device which does not leak sound, it is possible to enjoy karaoke at any time convenient for oneself because it does not bother other people in the same room and others. In the past, as a measure against noise, the volume of the karaoke device was reduced and the voice was sung, but since it became possible to sing out loud, the song progressed faster. By making this device cylindrical or funnel-shaped,
Since there is no obstruction in front of me, the music score is easy to see, and I was able to obtain many effects such as a voice diffusion prevention device suitable for practicing songs.

[Brief description of drawings]

FIG. 1 is a perspective view showing a sound diffusion preventing device of the present invention.

FIG. 2 is a perspective view seen from the back surface side of FIG.

FIG. 3 is a partially cutaway perspective view showing FIG. 1 in an exploded manner.

FIG. 4 is an explanatory diagram showing a usage example of FIG.

[Explanation of symbols]

 10 Sound Diffusion Prevention Device 12 Cover Main Body 14 Opening 16 Projection Port 18 Decompression Means 20 Sound Absorbing Material 21 Projection Port Wall 25 Microphone 26 Handle

Claims (1)

[Claims] 1. A cover body having a large diameter portion at one end and a small diameter portion at the other end, the large diameter side of the cylindrical body being opened, and the opening being formed to cover the periphery of the mouth. A protrusion opening for inserting sound transmission means provided on the side of the small diameter portion of the cover body, a pressure reducing means inside the cover body provided on the cover body around the protrusion opening, and an inner wall surface of the cover body. A sound diffusion preventing device comprising a sound absorbing material.