JP2023155099A - Sound isolation microphone system - Google Patents

Abstract

To provide a sound isolation microphone system that enables natural vocalization and conversation and is usable in a noisy place without paying attention to the circumference even in a living space or public space, or outdoors.SOLUTION: A sound insulation microphone system 1 is provided with a mask body 2 which has a space formed of an elastic body or hard material so as to generate voice by moving a mouth and has a fixed material suitably covering at least the mouth, and a microphone 3 which can be connected to external equipment 11 in the mask body. In the space of the mask body, a silencer 4 is interposed in the outside and an air passage 5 where air flows to enable natural conversation and singing.SELECTED DRAWING: Figure 2

Description

The present invention relates to a soundproof microphone system suitable for vocal practice, karaoke, outdoor network conferences, telephone calls, etc.

In the past, many musical instruments have been proposed as silent instruments, such as a soundproof piano combined with an electronic circuit, a trumpet with a mute added to the bell, and a saxophone that covers the entire instrument, but vocals have not yet been commercialized. For example, as a few examples, the one shown in Patent Document 1 has been proposed.

This patent document 1 (see FIG. 8) proposes a device in which a microphone cover 51 is attached to a sound collecting section of a microphone and used. This structure consists of a substantially cylindrical elastic hood part 52 and a microphone contact body 53 that fixes the microphone-side opening at one end of the hood part in close contact with the microphone.The inner surface of the hood part 52 has a sound-absorbing structure. A sound-deadening urethane 63 is attached thereto, and the user presses the mouth-side opening 41 at the other end of the hood 52 against the user's mouth to make a sound inside the hood.

However, this is welcomed in that it is possible to use a pre-owned microphone by fixing the head (sound collection part) of the microphone inside the hood part 52 via the microphone contact body 53 that fits around the microphone. However, when singing inside the closed hood part 52, there is no way for air to escape, so at least the singer does not have to cover his nose with only his mouth. Moreover, with this technology, when the user speaks, the internal pressure increases and the voice becomes muffled instead of natural.Even if the hood part 52 is pressed against the user's mouth, in actual use, it is necessary to create a gap. It was actually difficult for me to sing and I couldn't even raise my voice.

Therefore, in Patent Document 1, the voice needs to be generated not only from the mouth but also from the nose, and this point is taken into consideration. However, prior to this Patent Document 1, as the technology of Patent Document 2, an oral microphone 4 was placed in a funnel-shaped sound collection device that covered the mouth, and when the user spoke from the oral cavity, air escaped. What is provided with a tail pipe 15 is disclosed. Furthermore, a technique is disclosed in which sounds from the nose are collected using a nasal microphone 3 provided outside the funnel.

In the example disclosed in Patent Document 2, since there is an air passage, it is easier to speak, a more natural sound can be obtained, and the sound deadening property is also excellent. In this way, in Patent Document 2, sound is collected separately using the nasal microphone 3 outside the funnel and the oral cavity microphone 4 inside the funnel. Since the sound collection was not a mix of sound collection from the nose and mouth, it felt like the vocalizations were not natural, which left some dissatisfaction even when used for practice.

Utility model registration No. 3230078 Japanese Patent Application Publication No. 2002-244665 Patent application No. 2021-172724 Patent application No. 2021-200424

As for the microphone, using a handheld microphone that you are accustomed to using on a daily basis is meaningful in terms of its sound characteristics and also for practice purposes, so there is still room for improvement in the microphone shown in Patent Document 2. remains.

The present invention was developed based on research into a soundproof microphone system that allows practice to be performed using a handheld microphone that the user is accustomed to, rather than in a closed space by pressing it against the user's mouth. An application has already been filed for an invention aimed at providing a soundproof microphone system that can be used in a residential space without worrying about neighbors (Patent Documents 3 and 4).

In other words, as shown in Figure 3 of this book, even if you sing or have a conversation using an earphone microphone or a pin microphone, especially outside the living space, you will pick up a variety of sounds, and you will also be able to listen to your neighbors. It made me worry about my neighbors, and it was not easy to use even when used for network conferences or telephone calls.

A handheld microphone is good for karaoke or vocal practice, but there are still problems with its usability, especially for outdoor network meetings and phone calls. In other words, if you are looking at materials or moving around during network meetings or telephone calls outside, it is desirable to use your hands free-handed. Thus, the present invention aims to provide a soundproof microphone system that is easy to use, not only for karaoke and vocal practice, but also for outdoor network meetings and telephone calls, and even while moving. The purpose is

The soundproof microphone system of the present invention includes a mask body having a space made of an elastic body or a hard material and an appropriate fixing member for covering at least the mouth so that the mouth can be moved to generate sound; The mask is equipped with a microphone that can be connected to an external device, and a silencer is interposed between the space in the mask body and the path through which air flows to the outside, allowing natural conversation or singing.

Further, as an embodiment of the soundproof microphone system, at least the close contact portion of the mask body that covers the mouth is made of at least an elastic material such as rubber or resin.

Furthermore, as an embodiment of the soundproof microphone system, a filter for preventing dust and bacteria is interposed at an appropriate position on the outside of the mask body and in the air passage, so that it can be used as a mask for medical and health purposes.

FIG. 1 is a side cross-sectional explanatory diagram of the soundproof microphone system of the present invention. FIG. 2 is a side cross-sectional explanatory view of the soundproof microphone system of the present invention in use. An explanatory diagram of a conventional microphone system.

Before explaining the present application, as mentioned above, the present applicant has already filed an application, which uses a small microphone to enable free-hand conversation and singing.

Next, the soundproof microphone system 1 of the present invention will be explained in detail based on FIG. The soundproof microphone system 1 includes a mask body 2 that has a space made of an elastic body or a hard material and has an appropriate fixing member for covering at least the mouth so that the mouth can be moved and sound can be generated. A microphone 3 that can be connected to an external device is provided inside the mask body 2, and a silencer 4 is interposed in the air passage 5 through which air flows between the space of the mask body 2 and the outside, so that natural conversation or singing is possible. It is now possible to do so.

This embodiment is designed to cover the mouth and nose, and is characterized by an air passage 5 that allows for easy breathing, conversation, and singing. Further, the close contact portion 6 of the mask body 2 that covers at least the mouth is made of at least an elastic material such as rubber or resin to improve close contact.

The portions of the mask body 2 other than the contact portion 6 may be made of a harder resin or paper than the contact portion 6 in consideration of weight reduction. If metal is used, aluminum seems to be durable.

By interposing filters to prevent dust and bacteria at appropriate positions on the outside of the mask body 2 and in the air flow passages, the mask can be used as a medical or health mask by preventing dust and bacteria as described above. It appears to be. The filter may be selected from the filter materials of common medical masks. The mask body 2 is attached to the mask body 2 by sliding it from the side so as to block the air passage 5.

Reference numeral 9 denotes a connection part for the microphone 3 inside the mask main body 2, and the signal can be sent to the external device 10 by wiring together with the signal from the earphone 10. Of course, depending on the embodiment, the signal from the microphone 3 may be connected to an external device wirelessly such as Bluetooth (registered trademark).

The muffler 4 is a conventionally known muffler that has a number of nested walls arranged inside it, such as in cars and motorcycles, to absorb sound while allowing air to flow in and out without difficulty. Can be adopted.

The ear hook part 8 may be made of elastic rubber or fiber to be hung over the ear like a normal mask, or it may be a somewhat hard ear hook part like a pair of glasses. In order to improve the adhesion to the face, something like a rubber band that can be wrapped around the back of the head may be placed as an auxiliary device.

According to the mask-type soundproof microphone system 1 provided in this way, it is very easy to use not only for singing at home but also for use in network conferences and telephone calls outside, and even while on the move. Demand is expected to increase because it allows for safe conversations and is designed to prevent external sounds from being picked up.

1... Soundproof microphone system 2... Mask body 3... Microphone 4... Silencer 5... Air passage 6... Close contact part 7... Filter 8... Ear hook part 9... Connection part 10... Earphone 11... External device

Claims (3)

A mask body having a space made of an elastic or hard material and at least an appropriate fixing member for covering the mouth so that the mouth can be moved to generate sound, and a microphone connectable to an external device within the mask body. A soundproof microphone system characterized in that the space of the mask body is further provided with a silencer in the passageway through which air flows between the outside and the outside to enable natural conversation or singing. 2. The soundproof microphone system according to claim 1, wherein the close contact portion of the mask body that covers at least the mouth is made of at least an elastic material such as rubber or resin. 3. The soundproof microphone system according to claim 1, further comprising a filter for preventing dust and bacteria interposed at an appropriate position on the outside of the mask body and in a passage through which air flows.