JPH05199578A - Combined device of audio input device and sound insulating mask - Google Patents

Abstract

PURPOSE:To prevent the malfunction due to a voice and noise other than these of a device user by delaying an audio signal in a delay circuit by the time required for arrival at an intake from the mouth and emitting it from a speaker attached in the vicinity of the intake port. CONSTITUTION:When a device user 26 reads out a sentence to be generated aloud, a microphone 2 converts this voice to an electric signal. A word processor 4 converts this audio signal into character information by the voice recognizing function to display the sentence. Simultaneously, the audio signal amplified by a preamplifier 10 is delayed in a delay circuit 5 by the time approximately equal to the time which is required for the emitted acoustic wave to be propagated through a sound insulating duct 7 and arrive at a speaker 9. As the result, the voice of the device user 26 is cancelled by the acoustic wave, which is emitted from the speaker 9 and has the same pressure and the opposite phase, and is not leaked out of an intake port 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device using a voice recognition function as information input means, or a combination device of a voice input device such as a portable microphone and a sound insulating mask used when singing along with music accompaniment such as karaoke. It is about.

[0002]

2. Description of the Related Art FIG. 3 is a diagram showing a conventional voice input device disclosed in, for example, Japanese Unexamined Patent Publication No. 3-58265, in which 1 is a head unit to be mounted on the head of a user of the device, and 2 is a head. A microphone provided in the unit 1, 3 is a cable provided in the head unit 1, 4 is a computer that uses a voice recognition function for information input means, and 5 is a connector that is detachably attached to the computer 4 on the cable 3. is there.

Next, the operation will be described. A device user (not shown) mounts the head unit 1 on the head and utters arbitrary information through the mouth. Then microphone 2
Converts sound waves into electrical signals, cables 3, connectors 5
Is transmitted to the computer 4, and then the computer 4 converts the voice information into numerical information or command information used for calculation and performs arithmetic processing.

[0004]

Since the conventional voice input device is configured as described above, when a plurality of users perform input work adjacent to each other, or when another user speaks to the device user. In such a case, there is a problem that a computer malfunctions because a voice different from arbitrary information and a different voice are mixed and collected from the microphone.

Further, when performing work in a large number of other people such as passenger transportation means, the contents of calculation are heard by another person, confidentiality is leaked, or a voice for inputting is annoying to another person, or one person is annoyed. There was a problem such as feeling reluctance to work out loud

The present invention has been made in order to solve the above problems, and not only does a malfunction not occur due to voices and noises other than the user of the apparatus, but the voices at the time of voice input are not leaked to the outside. The purpose is to obtain a combination device of no voice input device and sound insulation mask.

[0007]

A combination device of a voice input device and a sound insulation mask according to the present invention includes a mask portion for covering a user's mouth, a microphone built in the mask portion for picking up a voice, A delay circuit for delaying the collected audio signal, an amplifier for amplifying the audio signal, a sound insulation duct connected to the mask portion, an air intake opening formed in the sound insulation duct, and arranged near the air intake opening. And a speaker that converts a sound signal into a sound wave.

Further, the mask portion is rotatably attached to a head unit mounted on the head, and the rotation center of the mask portion substantially coincides with the rotation center of the lower jaw of the user of the apparatus. It can be worn on the face.

Further, a head unit that can be mounted on the user's head is provided in the combination device of the voice input device and the sound insulation mask, and a receiving means for receiving a radio wave, a transmitting means for transmitting a radio wave, and an arbitrary line are selected. Equipped with music selection means,
The music selection means is attached to the rotatable mask portion.

Furthermore, an external input terminal for inputting an external voice to the combination device of the voice input device and the sound insulation mask, an external input signal input from the already external input terminal and a voice signal input from the microphone. On the other hand, it is equipped with a sound processor that produces a reverberation effect, an amplifier that amplifies the signal of each channel of the sound processor, and an earphone that converts the output of the existing amplifier into sound waves.

[0011]

In the combination device of the voice input device and the sound insulation mask according to the present invention, the sound wave of the voice is canceled by the speaker and does not leak to the outside.

[0012]

EXAMPLES Example 1. Examples of the present invention will be described below. 1 is a block diagram of a first embodiment of the present invention, and FIG. 2 is a bird's-eye view showing an example in which a combination device of a voice input device and a sound insulation mask is mounted on a head. In FIG. 1, 1 is a voice input device and a sound insulation mask. Head unit of combination device, 2
Is a microphone attached to the head unit 1, 3
Is an output cable connected to the head unit 1, 4 is a word processor whose input means has a voice recognition function, 5 is an external output terminal provided in the head unit 1, 6 is a mask formed with the head unit 1 and having a microphone 2 attached Reference numeral 7 denotes a sound insulation duct connected to the mask portion 6, 8 denotes an air intake port formed in the sound insulation duct 7, 9 denotes a speaker mounted near the air intake port 10, 10 denotes a preamplifier connected to the microphone 2, 11 Is a delay circuit connected to the preamplifier 10, 12 is an amplifier connected between the delay circuit 11 and the speaker 9, 13 is a battery provided inside the head unit 1, and 14 is an external input provided in the head unit 1. Terminal, 15 is an external input device connected to the external input terminal 14, 16 is a sound processor connected to the external input terminal 14, 7,18,19,20 right front earphones attached respectively to the head unit 1, the right rear earphone, left front earphone, rear left earphone 2
1, 22, 23, and 24 are amplifiers connected between the right front earphone 17, the right rear earphone 18, the left front earphone 19, the left rear earphone 20, and the sound processor, and 25 is a mobile phone connected to the output cable 3. Two
Reference numeral 6 is a user of the apparatus, 27 is a music selecting means of the mobile phone provided on the upper part of the mask portion, and 28 is a receiving / transmitting means composed of an antenna or the like provided in the head unit 1.

Next, the operation will be described. Device user 2
6 creates a sentence using the word processor 4,
First, when the device user 26 reads aloud a sentence to be created, the microphone 2 picks up the voice, replaces it with an electric signal and amplifies it with the preamplifier 10. The amplified voice signal is output from the external output terminal 5. It is transmitted through the cable 3 and input to the word processor 4. Then, the word processor 4 converts the voice signal into character information by the voice recognition function and displays the sentence. At the same time, the sound signal amplified by the preamplifier 10 causes a time delay approximately the same as the time when the sound wave uttered through the delay circuit 5 propagates through the sound insulation duct 7 and reaches the speaker 9. Then, the voice of the device user 26 is the same pressure generated from the speaker 9,
Moreover, the noise and the noise outside the head unit 1 are canceled by the sound waves of the opposite phase and do not leak to the outside of the intake port 8, or by forming the mask portion 6 and the sound insulating duct 7 with a material having a high sound insulating effect, the conversation and noise outside the head unit 1 are transmitted to the microphone 2. No sound is picked up. In addition, the vocal sound is output from the preamplifier 10 to the sound processor 1
6 is also transmitted to the mask portion 6 and the sound insulation duct 7 to be diffused, and a proper reflected reverberation sound is created and processed for the sound picked up by the microphone 2.
Output from each earphone via 23 and 24.

Example 2. Although the combination of the voice input device and the sound insulation mask is connected to the word processor in the first embodiment, it may be connected to the mobile phone 25, a wireless device, or the like. In this case, as shown in FIG. The machine may be integrated with the head unit 1, and the head unit may include a music selection means 27 such as a push dial, a reception antenna such as a reception antenna, and a transmission means 28. Further, in FIG. 2, the mask portion 6 is attached to the head unit 1 so as to be rotatable around a rotation fulcrum 29, and the axis line is substantially the same as the axis line of the rotation center of the lower jaw of the device user 26. The mask portion 6 is configured to follow the motion of the device user 26 uttering a voice in agreement, but if the user further grasps the mask part and positively rotates it, the device user is confident. Since the arrangement of the buttons of the music selection means 28 can be confirmed,
When selecting the dial line of the mobile phone in this state, there are few mistakes in pressing the button.

Example 3. By connecting an external input device 15 capable of reproducing an accompaniment performance of a music piece such as a disc player or a tape recorder to the external input terminal 14, the combined device of the voice input device and the sound insulation mask can be used as a microphone of a karaoke device. In this case, the reverberation setting of the sound processor may be provided with a variable volume 30 that can be adjusted from the outside, or a changeover switch 31 that can be selected from a plurality of prestored reverberation setting values may be provided. In the above, only the output of the preamplifier 10 is connected to the external output terminal. However, the changeover switch 31 is provided so that the output of the sound processor 16 can be connected to the external output terminal, and the reverberation effect is given to the accompaniment of the music and the real voice of the device user. The added audio signal may be recorded on an external recording device, or may be recorded by multiple people. If you want,
A plurality of external input / output terminals for confirming mutual voices or a transceiver for propagating voices in the air may be incorporated.

[0016]

As described above, according to the present invention, in the combination device of the voice input device and the sound insulation mask, the delay circuit delays the same time as the time required for the voice signal to reach from the mouth to the mouth, so that the voice signal is near the mouth. Since it is generated by the attached speaker, the voice recognition function of the device to be connected is effective even when a plurality of users perform input work adjacent to each other or when another user speaks to the device user. There is an effect that a highly reliable device can be obtained without malfunctioning.

In addition, when carrying out voice input in passenger transportation means, in a large number of other people on a street corner, or when talking with a remote person, the content cannot be heard by other people, and confidential information is not leaked or input. Since the voice of is not heard externally, it is possible to obtain the effect that it does not disturb other people, or that the person feels no resistance to talking alone.

[Brief description of drawings]

FIG. 1 is a block diagram showing a combination device of a voice input device and a sound insulation mask according to an embodiment of the present invention.

FIG. 2 is a bird's-eye view showing Examples 1, 2 and 3 of the present invention.

FIG. 3 is a perspective view showing a conventional combination device of a voice input device and a sound insulation mask.

[Explanation of symbols]

 1 Head Unit 2 Microphone 6 Mask Part 7 Sound Insulation Duct 8 Intake Port 9 Speaker 11 Delay Circuit 12 Amplifier 14 External Input Terminal 16 Sound Processor 17, 18, 19, 20 Earphone 21, 22, 23, 24 Amplifier 26 Device User 27 Music Selection Means 28 Reception and transmission means

Claims (4)

[Claims] 1. A mask unit for covering a user's mouth, a microphone built in the mask unit for collecting voice, a delay circuit for delaying the collected voice signal, and an amplifier for amplifying the voice signal. And a sound insulation duct connected to the mask portion, an air intake opening formed in the sound insulation duct, and a speaker arranged near the air intake opening for converting a sound signal into a sound wave. And sound insulation mask combination device. 2. The mask section is rotatably attached to a head unit mounted on the head, and the center of rotation of the mask section is substantially coincident with the center of rotation of the lower jaw of the user of the apparatus. The combination device of the voice input device and the sound insulation mask according to claim 1, wherein the device can be mounted on the face by being made to do so. 3. A head unit attachable to a user's head is provided in the combination device of the voice input device and the sound insulation mask, and a receiving unit for receiving a radio wave, a transmitting unit for transmitting a radio wave, and an arbitrary line are selected. The combination device of the voice input device and the sound insulation mask according to claim 1, further comprising a music selection unit, wherein the music selection unit is attached to the rotatable mask portion. 4. An external input terminal for inputting an external sound to the combination device of the audio input device and the sound insulation mask, an external input signal input from an already external input terminal, and an audio signal input from the microphone. The sound input device according to claim 1, further comprising: a sound processor for producing a reverberation effect by a sound, an amplifier for amplifying a signal of each channel of the sound processor, and an earphone for converting an output of the existing amplifier into a sound wave. And sound insulation mask combination device.