JP2555939B2 - Microphone voice input device - Google Patents
Microphone voice input deviceInfo
- Publication number
- JP2555939B2 JP2555939B2 JP5171174A JP17117493A JP2555939B2 JP 2555939 B2 JP2555939 B2 JP 2555939B2 JP 5171174 A JP5171174 A JP 5171174A JP 17117493 A JP17117493 A JP 17117493A JP 2555939 B2 JP2555939 B2 JP 2555939B2
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- voice
- external vibration
- voice input
- input device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Circuit For Audible Band Transducer (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はマイク音声入力装置に関
し、特にマイク音声入力に関する声ぶれ補正に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microphone voice input device, and more particularly to a voice blur correction for microphone voice input.
【０００２】[0002]
【従来の技術】従来、マイク音声入力装置においては、
図２に示すように、マイク１から入力された音声を音声
増幅部２で所望のレベルまで増幅して出力するようにな
っている。2. Description of the Related Art Conventionally, in a microphone voice input device,
As shown in FIG. 2, the voice input from the microphone 1 is amplified by the voice amplifier 2 to a desired level and output.
【０００３】ヘリコプタ等の外部振動が大きい移動体用
のマイク音声入力装置でも、上記のような構成となって
いるので、その外部振動によって入力音声が声ぶれを起
こしていても、マイク１から入力された入力音声がその
まま音声増幅部２で所望のレベルまで増幅されている。Since the microphone voice input device for a moving body such as a helicopter having a large external vibration has the above-mentioned structure, the input voice is input from the microphone 1 even if the input voice causes a voice blur. The input input voice is directly amplified by the voice amplifier 2 to a desired level.
【０００４】[0004]
【発明が解決しようとする課題】上述した従来のマイク
音声入力装置では、発声者の音声に外部振動等によって
機械的変調がかかった場合、電気信号に変換しようとす
る音声信号の品質に著しい劣化を招き、その品質劣化を
除去することが困難となっている。In the conventional microphone voice input device described above, when the voice of the speaker is mechanically modulated by external vibration or the like, the quality of the voice signal to be converted into an electrical signal is significantly deteriorated. Therefore, it is difficult to remove the quality deterioration.
【０００５】そこで、本発明の目的は上記問題点を解消
し、機械的変調による音声信号の品質劣化を軽減するこ
とができるマイク音声入力装置を提供することにある。Therefore, an object of the present invention is to solve the above problems and to provide a microphone voice input device capable of reducing the quality deterioration of a voice signal due to mechanical modulation.
【０００６】[0006]
【課題を解決するための手段】本発明によるマイク音声
入力装置は、マイクから入力される音声の発声源近傍の
外部振動を検出するため、前記マイクと別体に設けた検
出手段と、前記検出手段によって検出された外部振動を
基に前記マイクから入力される音声を補正する補正手段
とを備えている。A microphone voice input device according to the present invention is provided as a detection device provided separately from the microphone in order to detect external vibration in the vicinity of the utterance source of the voice input from the microphone. And a correction unit that corrects the voice input from the microphone based on the external vibration detected by the detection unit.
【０００７】[0007]
【実施例】次に、本発明の一実施例について図面を参照
して説明する。Next, an embodiment of the present invention will be described with reference to the drawings.
【０００８】図１は本発明の一実施例の構成を示すブロ
ック図である。図において、ヘリコプタ等の移動体によ
る外部振動で声ぶれを起こしている入力音声がマイク１
から入力されると、当該入力音声は音声増幅部２で所望
のレベルまで増幅されて声ぶれ補正処理部４に出力され
る。FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention. In the figure, the input voice that causes a voice shake due to external vibration caused by a moving body such as a helicopter is a microphone 1.
Is input to the voice blur correction processing unit 4 after being amplified to a desired level by the voice amplification unit 2.
【０００９】外部振動検出部３はマイク１から入力音声
を入力する発声者の喉近くに設置されており、発声者の
喉近くで外部振動を検出すると、その外部振動を基に生
成した外部振動検出信号を声ぶれ補正処理部４に出力す
る。The external vibration detector 3 is installed near the throat of the speaker who inputs the input voice from the microphone 1. When the external vibration is detected near the throat of the speaker, the external vibration generated based on the external vibration is detected. The detection signal is output to the blur correction processing unit 4.
【００１０】すなわち、外部振動検出部３の小型圧電振
動ジャイロ３１は外部振動を検出すると、その外部振動
の大きさの角速度を積分器３２に出力する。積分器３２
は小型圧電振動ジャイロ３１からの角速度を積分して外
部振動の大きさ・位相信号に変換し、この信号を増幅器
３３に出力する。That is, when the small piezoelectric vibration gyro 31 of the external vibration detector 3 detects external vibration, it outputs an angular velocity corresponding to the magnitude of the external vibration to the integrator 32. Integrator 32
Integrates the angular velocity from the small piezoelectric vibrating gyro 31, converts it into a magnitude / phase signal of external vibration, and outputs this signal to the amplifier 33.
【００１１】増幅器３３は積分器３２からの信号を所望
のレベルまで増幅し、この増幅した信号を外部振動検出
信号として声ぶれ補正処理部４に出力する。The amplifier 33 amplifies the signal from the integrator 32 to a desired level, and outputs the amplified signal to the voice blur correction processing section 4 as an external vibration detection signal.
【００１２】声ぶれ補正処理部４はマイク１から入力さ
れた音声の声ぶれの原因となっている外部振動等の成分
を打ち消すように外部振動検出部３からの外部振動検出
信号のレベルと位相とをアダプティブに調節する。声ぶ
れ補正処理部４はこの調節した信号を声ぶれを起こして
いる入力音声に加えて補正処理を行い、補正した信号を
入力音声信号として外部に出力する。The voice blur correction processing unit 4 cancels out a component such as external vibration that causes the voice blur of the voice input from the microphone 1 so as to cancel the level and phase of the external vibration detection signal from the external vibration detection unit 3. And are adaptively adjusted. The voice blur correction processing unit 4 adds the adjusted signal to the input voice causing the voice blur to perform a correction process, and outputs the corrected signal to the outside as an input voice signal.
【００１３】このように、マイク１から入力された入力
音声の声ぶれ成分を、発声者の喉近くで検出された外部
振動を基に外部振動検出部３で生成された外部振動検出
信号によって打ち消すよう声ぶれ補正処理部４で補正処
理を行うことによって、声ぶれを軽減または防止するこ
とができるので、機械的変調による音声信号の品質劣化
を軽減することができる。As described above, the blurring component of the input voice input from the microphone 1 is canceled by the external vibration detection signal generated by the external vibration detection unit 3 based on the external vibration detected near the throat of the speaker. By performing the correction processing in the voice blur correction processing unit 4, it is possible to reduce or prevent the voice blur, so that it is possible to reduce the quality deterioration of the audio signal due to the mechanical modulation.
【００１４】[0014]
【発明の効果】以上説明したように本発明によれば、マ
イクから入力される音声の発声源近傍の外部振動を検出
し、この検出された外部振動を基にマイクから入力され
る音声を補正することによって、機械的変調による音声
信号の品質劣化を軽減することができるという効果があ
る。As described above, according to the present invention, the external vibration near the utterance source of the voice input from the microphone is detected, and the voice input from the microphone is corrected based on the detected external vibration. By doing so, it is possible to reduce the quality deterioration of the audio signal due to mechanical modulation.
【図１】本発明の一実施例の構成を示すブロック図であ
る。FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
【図２】従来例の構成を示すブロック図である。FIG. 2 is a block diagram showing a configuration of a conventional example.
１ マイク ３ 外部振動検出部 ４ 声ぶれ補正処理部 ３１ 小型圧電振動ジャイロ ３２ 積分器 ３３ 増幅器 1 Microphone 3 External Vibration Detection Unit 4 Voice Stabilization Processing Unit 31 Small Piezoelectric Vibration Gyro 32 Integrator 33 Amplifier
Claims (3)
の外部振動を検出するため、前記マイクと別体に設けた
検出手段と、前記検出手段によって検出された外部振動
を基に前記マイクから入力される音声を補正する補正手
段とを有することを特徴とするマイク音声入力装置。1. A detection unit provided separately from the microphone for detecting an external vibration of a voice input from a microphone in the vicinity of a voicing source, and an external vibration detected by the detection unit. And a correction unit that corrects the sound input from the microphone.
動の角速度を検出する角速度検出手段を含むよう構成し
たことを特徴とする請求項１記載のマイク音声入力装
置。2. The microphone voice input device according to claim 1, wherein the detecting means includes at least an angular velocity detecting means for detecting an angular velocity of the external vibration.
検出された外部振動を基に前記マイクから入力される音
声に重畳した外部振動を打ち消すための信号を生成する
生成手段と、前記マイクから入力される音声に前記生成
手段の出力を加えて当該音声の補正を行う手段とを含む
よう構成したことを特徴とする請求項１または請求項２
記載のマイク音声入力装置。3. The correction means generates a signal for canceling the external vibration superimposed on the voice input from the microphone based on the external vibration detected by the detection means, and the correction means inputs the signal from the microphone. 3. A unit configured to add the output of the generation unit to the generated voice and correct the voice.
Microphone voice input device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5171174A JP2555939B2 (en) | 1993-06-16 | 1993-06-16 | Microphone voice input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5171174A JP2555939B2 (en) | 1993-06-16 | 1993-06-16 | Microphone voice input device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH077784A JPH077784A (en) | 1995-01-10 |
| JP2555939B2 true JP2555939B2 (en) | 1996-11-20 |
Family
ID=15918377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5171174A Expired - Lifetime JP2555939B2 (en) | 1993-06-16 | 1993-06-16 | Microphone voice input device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2555939B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5940798A (en) * | 1982-08-31 | 1984-03-06 | Toshiba Corp | Noise reduction device of microphone |
| JP3000617B2 (en) * | 1990-04-12 | 2000-01-17 | ソニー株式会社 | Microphone device |
-
1993
- 1993-06-16 JP JP5171174A patent/JP2555939B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH077784A (en) | 1995-01-10 |
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