KR960705303A - 음성 액티비티 검출기(voice activity detector) - Google Patents
음성 액티비티 검출기(voice activity detector)Info
- Publication number
- KR960705303A KR960705303A KR1019960701186A KR19960701186A KR960705303A KR 960705303 A KR960705303 A KR 960705303A KR 1019960701186 A KR1019960701186 A KR 1019960701186A KR 19960701186 A KR19960701186 A KR 19960701186A KR 960705303 A KR960705303 A KR 960705303A
- Authority
- KR
- South Korea
- Prior art keywords
- input signal
- gain
- activity detector
- voice
- detector
- Prior art date
Links
- 230000000694 effects Effects 0.000 title claims abstract description 12
- 230000003595 spectral effect Effects 0.000 claims abstract 2
- 230000005540 biological transmission Effects 0.000 claims 4
- 238000000034 method Methods 0.000 claims 2
- 230000001629 suppression Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L25/84—Detection of presence or absence of voice signals for discriminating voice from noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/46—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
- G10L2025/786—Adaptive threshold
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Electrophonic Musical Instruments (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Telephone Function (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Control Of Amplification And Gain Control (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Burglar Alarm Systems (AREA)
- Measuring Fluid Pressure (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Electromechanical Clocks (AREA)
- Cosmetics (AREA)
- Radio Relay Systems (AREA)
- Circuit For Audible Band Transducer (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
본 발명은 음성 기간 또는 잡음만을 포함하는 기간을 검출할 목적으로 신호를 제공하는 음성 엑티비티 검출기에 관한 것이다. 음성은 입력신호와 저장된 잡음 추정(113)을 비교하는 스펙트럼 비교(114,115)에 의해 잡음과 구별되고, (버퍼(113)의) 상기 잡음 추정의 갱신은 보조 검출기(200)의 제어하에서 음성이 존재하지 않는 기간 동안 허용되고, 강한 고조파 성분(예를 들면, 신호음)을 가지는 신호에 대하여 동작을 개선하기 위하여 입력의 주파수 성분을 보상하는 응답을 가지는 필터(105)에 의한 필터링을 수반하는 입력으로부터 얻어진 입력(x(i))과 나머지(y(i))로부터 LPC 예측 이득이 계산되며, 상기 이득이 임계를 초과하면 버퍼 갱신이 억제되는 것을 특징으로 한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 국제특허출원 WO89/08910에 기술된 음성 액티비티 검출기를 보여준다,
제2도는 본 발명의 제1태양에 따른 음성 액티비티 검출기를 가진 음성 코더에 대한 블럭도,
제3도 및 제4도는 여러 가지 입력 신호로부터의 예측 이득 값을 그래픽으로 보여주는 도면, 및
제5도는 본 발명의 제2실시예에 대한 블럭도이다.
Claims (8)
- (a) 입력신호의 잡음 성분에 대한 추정을 저장하는 수단; (b) 출력 결정 신호를 발생하기 위하여 상기 입력신호와 상기 저장된 추정의 스펙트럼 유사성을 인식하는 수단; (c) 상기 저장된 추정을 갱신하는 수단; 및 (d) 음성이 상기 입력신호에 존재하지 않는 것이 보조 검출기에 의해 표시될 때만 갱신이 발생하도록 상기 갱신수단을 제어하기 위해 구성된 보조 검출기를 포함하고, 입력신호에 대한 예측 이득 변수를 계산하기 위해 동작하는 수단 및 예측 이득이 임계값을 초과하는 경우에 갱신을 억제하기 위해 구성되는 수정수단을 특징으로 하는 입력신호에서 음성의 존재를 검출하는 음성 액티비티 검출기.
- 제1항에 있어서, 상기 보조 검출기가 LPC 나머지 신호로부터 인출된 신호에 응답하는 유성 검출기를 포함하는 것을 특징으로 하는 입력신호에서 음성의 존재를 검출하는 음성 액티비티 검출기.
- 제1항 또는 제2항에 있어서, 상기 이득 변수가 6차 또는 보다 작은 차수에 대한 LPC 예측의 예측 이득을 나타내는 것을 특징으로 하는 입력신호에서 음성의 존재를 검출하는 음성 액티비티 검출기.
- 제3항에 있어서, 상기 이득 변수가 4차 또는 보다 작은 차수에 대한 LPC 예측의 예측 이득을 나타내는 것을 특징으로 하는 입력신호에서 음성의 존재를 검출하는 음성 액티비티 검출기.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 입력신호에 대한 하나 이상의 1차 주파수 성분을 검출하는 수단 및 지정 임계와 주파수를 비교하고 상기 1차 성분이 임계를 초과할 때만 갱신의 억제를 허용하기 위해 동작하는 수단을 더 포함하는 것을 특징으로 하는 입력신호에서 음성의 존재를 검출하는 음성 액티비티 검출기.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 이득 계산 수단이 상기 입력신호의 주파수 범위 중 상위 부분을 제거하기 위해 필터를 수반하고, 상기 필터의 전송대역내의 주파수 성분에 대해서만 실행되는 것을 특징으로 하는 입력신호에서 음성의 존재를 검출하는 음성 액티비티 검출기.
- 제6항에 있어서, 개별적인 전송대역을 가지며, 상기 개별적인 전송대역에 대하여 이득 변수를 계산하기 위한 이득 계산 수단을 가지고, 상기 수정수단이 상기 전송대역 중 어느 하나의 전송대역내의 예측 이득이 임계값을 초과하는 경우에 갱신을 억제하기 위해 구성되는 것을 특징으로 하는 입력신호에서 음성의 존재를 검출하는 음성 액티비티 검출기.
- 제6항 또는 제7항에 있어서, 상기 필터를 통과한 신호를 준표본화하는 수단을 포함하는 것을 특징으로 하는 입력신호에서 음성의 존재를 검출하는 음성 액티비티 검출기.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93307211 | 1993-09-14 | ||
EP93307211.8 | 1993-09-14 | ||
GB939324967A GB9324967D0 (en) | 1993-12-06 | 1993-12-06 | Voice activity detector |
GB9324967.0 | 1993-12-06 | ||
GB9412451.8 | 1994-06-21 | ||
GB9412451A GB9412451D0 (en) | 1994-06-21 | 1994-06-21 | Voice activity detector |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960705303A true KR960705303A (ko) | 1996-10-09 |
KR100363309B1 KR100363309B1 (ko) | 2003-02-17 |
Family
ID=27235491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960701186A KR100363309B1 (ko) | 1993-09-14 | 1994-09-14 | 음성액티비티검출기 |
Country Status (23)
Country | Link |
---|---|
US (2) | US5749067A (ko) |
EP (1) | EP0719439B1 (ko) |
JP (1) | JP3224132B2 (ko) |
KR (1) | KR100363309B1 (ko) |
CN (1) | CN1064772C (ko) |
AT (1) | ATE182420T1 (ko) |
BR (1) | BR9407535A (ko) |
CA (1) | CA2169745C (ko) |
CZ (1) | CZ286743B6 (ko) |
DE (1) | DE69419615T2 (ko) |
DK (1) | DK0719439T3 (ko) |
ES (1) | ES2136204T3 (ko) |
FI (1) | FI118195B (ko) |
GR (1) | GR3031515T3 (ko) |
HK (1) | HK1014392A1 (ko) |
HU (1) | HU219994B (ko) |
IN (1) | IN184794B (ko) |
MY (1) | MY111134A (ko) |
NO (1) | NO307979B1 (ko) |
NZ (1) | NZ273045A (ko) |
SG (1) | SG48935A1 (ko) |
SK (1) | SK281796B6 (ko) |
WO (1) | WO1995008170A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8554552B2 (en) | 2008-10-31 | 2013-10-08 | Samsung Electronics Co., Ltd. | Apparatus and method for restoring voice |
Families Citing this family (95)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN184794B (ko) * | 1993-09-14 | 2000-09-30 | British Telecomm | |
JP3522012B2 (ja) * | 1995-08-23 | 2004-04-26 | 沖電気工業株式会社 | コード励振線形予測符号化装置 |
FI100840B (fi) | 1995-12-12 | 1998-02-27 | Nokia Mobile Phones Ltd | Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin |
JP4307557B2 (ja) * | 1996-07-03 | 2009-08-05 | ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー | 音声活性度検出器 |
US6708146B1 (en) * | 1997-01-03 | 2004-03-16 | Telecommunications Research Laboratories | Voiceband signal classifier |
JPH10247098A (ja) * | 1997-03-04 | 1998-09-14 | Mitsubishi Electric Corp | 可変レート音声符号化方法、可変レート音声復号化方法 |
US6531982B1 (en) | 1997-09-30 | 2003-03-11 | Sirf Technology, Inc. | Field unit for use in a GPS system |
US5970446A (en) | 1997-11-25 | 1999-10-19 | At&T Corp | Selective noise/channel/coding models and recognizers for automatic speech recognition |
US6385548B2 (en) * | 1997-12-12 | 2002-05-07 | Motorola, Inc. | Apparatus and method for detecting and characterizing signals in a communication system |
US6327471B1 (en) | 1998-02-19 | 2001-12-04 | Conexant Systems, Inc. | Method and an apparatus for positioning system assisted cellular radiotelephone handoff and dropoff |
US5991718A (en) * | 1998-02-27 | 1999-11-23 | At&T Corp. | System and method for noise threshold adaptation for voice activity detection in nonstationary noise environments |
US6182035B1 (en) | 1998-03-26 | 2001-01-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for detecting voice activity |
US6348744B1 (en) | 1998-04-14 | 2002-02-19 | Conexant Systems, Inc. | Integrated power management module |
US6453289B1 (en) | 1998-07-24 | 2002-09-17 | Hughes Electronics Corporation | Method of noise reduction for speech codecs |
US7545854B1 (en) | 1998-09-01 | 2009-06-09 | Sirf Technology, Inc. | Doppler corrected spread spectrum matched filter |
US7711038B1 (en) | 1998-09-01 | 2010-05-04 | Sirf Technology, Inc. | System and method for despreading in a spread spectrum matched filter |
US6693953B2 (en) | 1998-09-30 | 2004-02-17 | Skyworks Solutions, Inc. | Adaptive wireless communication receiver |
US6448925B1 (en) | 1999-02-04 | 2002-09-10 | Conexant Systems, Inc. | Jamming detection and blanking for GPS receivers |
US6606349B1 (en) | 1999-02-04 | 2003-08-12 | Sirf Technology, Inc. | Spread spectrum receiver performance improvement |
US6556967B1 (en) | 1999-03-12 | 2003-04-29 | The United States Of America As Represented By The National Security Agency | Voice activity detector |
US6577271B1 (en) | 1999-03-30 | 2003-06-10 | Sirf Technology, Inc | Signal detector employing coherent integration |
US6304216B1 (en) | 1999-03-30 | 2001-10-16 | Conexant Systems, Inc. | Signal detector employing correlation analysis of non-uniform and disjoint sample segments |
US6618701B2 (en) * | 1999-04-19 | 2003-09-09 | Motorola, Inc. | Method and system for noise suppression using external voice activity detection |
US6381568B1 (en) | 1999-05-05 | 2002-04-30 | The United States Of America As Represented By The National Security Agency | Method of transmitting speech using discontinuous transmission and comfort noise |
US6351486B1 (en) | 1999-05-25 | 2002-02-26 | Conexant Systems, Inc. | Accelerated selection of a base station in a wireless communication system |
JP3929686B2 (ja) * | 2000-08-14 | 2007-06-13 | 松下電器産業株式会社 | 音声スイッチング装置およびその方法 |
US6931055B1 (en) | 2000-04-18 | 2005-08-16 | Sirf Technology, Inc. | Signal detector employing a doppler phase correction system |
US6714158B1 (en) | 2000-04-18 | 2004-03-30 | Sirf Technology, Inc. | Method and system for data detection in a global positioning system satellite receiver |
US6952440B1 (en) | 2000-04-18 | 2005-10-04 | Sirf Technology, Inc. | Signal detector employing a Doppler phase correction system |
US6788655B1 (en) | 2000-04-18 | 2004-09-07 | Sirf Technology, Inc. | Personal communications device with ratio counter |
FR2808391B1 (fr) * | 2000-04-28 | 2002-06-07 | France Telecom | Systeme de reception pour antenne multicapteur |
US7885314B1 (en) | 2000-05-02 | 2011-02-08 | Kenneth Scott Walley | Cancellation system and method for a wireless positioning system |
US6778136B2 (en) * | 2001-12-13 | 2004-08-17 | Sirf Technology, Inc. | Fast acquisition of GPS signal |
JP4201470B2 (ja) * | 2000-09-12 | 2008-12-24 | パイオニア株式会社 | 音声認識システム |
JP4201471B2 (ja) * | 2000-09-12 | 2008-12-24 | パイオニア株式会社 | 音声認識システム |
US7472059B2 (en) * | 2000-12-08 | 2008-12-30 | Qualcomm Incorporated | Method and apparatus for robust speech classification |
US7437286B2 (en) * | 2000-12-27 | 2008-10-14 | Intel Corporation | Voice barge-in in telephony speech recognition |
US6707869B1 (en) * | 2000-12-28 | 2004-03-16 | Nortel Networks Limited | Signal-processing apparatus with a filter of flexible window design |
DE10121532A1 (de) * | 2001-05-03 | 2002-11-07 | Siemens Ag | Verfahren und Vorrichtung zur automatischen Differenzierung und/oder Detektion akustischer Signale |
JP3859462B2 (ja) * | 2001-05-18 | 2006-12-20 | 株式会社東芝 | 予測パラメータ分析装置および予測パラメータ分析方法 |
KR100399057B1 (ko) * | 2001-08-07 | 2003-09-26 | 한국전자통신연구원 | 이동통신 시스템의 음성 활성도 측정 장치 및 그 방법 |
US20030110029A1 (en) * | 2001-12-07 | 2003-06-12 | Masoud Ahmadi | Noise detection and cancellation in communications systems |
US7689406B2 (en) * | 2002-03-08 | 2010-03-30 | Koninklijke Kpn. N.V. | Method and system for measuring a system's transmission quality |
US7454331B2 (en) | 2002-08-30 | 2008-11-18 | Dolby Laboratories Licensing Corporation | Controlling loudness of speech in signals that contain speech and other types of audio material |
US20040064314A1 (en) * | 2002-09-27 | 2004-04-01 | Aubert Nicolas De Saint | Methods and apparatus for speech end-point detection |
US7146316B2 (en) * | 2002-10-17 | 2006-12-05 | Clarity Technologies, Inc. | Noise reduction in subbanded speech signals |
US7272552B1 (en) * | 2002-12-27 | 2007-09-18 | At&T Corp. | Voice activity detection and silence suppression in a packet network |
US7230955B1 (en) * | 2002-12-27 | 2007-06-12 | At & T Corp. | System and method for improved use of voice activity detection |
JP2004341339A (ja) * | 2003-05-16 | 2004-12-02 | Mitsubishi Electric Corp | 雑音抑圧装置 |
KR101164937B1 (ko) * | 2003-05-28 | 2012-07-12 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 오디오 신호의 인식된 라우드니스를 계산 및 조정하는방법, 장치 및 컴퓨터 프로그램 |
EP1661916A4 (en) | 2003-07-16 | 2008-10-01 | Daikin Ind Ltd | PROCESS FOR PREPARING FLUOROUS POLYMER, AQUEOUS DISPERSION OF FLUOROUS POLYMER, 2-ACYLOXYCARBOXYLENE DERIVATIVE AND TENSID |
SG119199A1 (en) * | 2003-09-30 | 2006-02-28 | Stmicroelectronics Asia Pacfic | Voice activity detector |
JP4497911B2 (ja) * | 2003-12-16 | 2010-07-07 | キヤノン株式会社 | 信号検出装置および方法、ならびにプログラム |
US20050209762A1 (en) * | 2004-03-18 | 2005-09-22 | Ford Global Technologies, Llc | Method and apparatus for controlling a vehicle using an object detection system and brake-steer |
FI20045315A (fi) * | 2004-08-30 | 2006-03-01 | Nokia Corp | Ääniaktiivisuuden havaitseminen äänisignaalissa |
CN101048935B (zh) | 2004-10-26 | 2011-03-23 | 杜比实验室特许公司 | 控制音频信号的单位响度或部分单位响度的方法和设备 |
US8199933B2 (en) | 2004-10-26 | 2012-06-12 | Dolby Laboratories Licensing Corporation | Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal |
JP4729927B2 (ja) * | 2005-01-11 | 2011-07-20 | ソニー株式会社 | 音声検出装置、自動撮像装置、および音声検出方法 |
BRPI0610719B1 (pt) * | 2005-04-18 | 2015-11-24 | Basf Ag | preparação, processo para a produção da mesma, e, uso de preparações |
US7826945B2 (en) * | 2005-07-01 | 2010-11-02 | You Zhang | Automobile speech-recognition interface |
DE102006032967B4 (de) * | 2005-07-28 | 2012-04-19 | S. Siedle & Söhne Telefon- und Telegrafenwerke OHG | Hausanlage und Verfahren zum Betreiben einer Hausanlage |
GB2430129B (en) * | 2005-09-08 | 2007-10-31 | Motorola Inc | Voice activity detector and method of operation therein |
JP4971351B2 (ja) * | 2005-12-05 | 2012-07-11 | クゥアルコム・インコーポレイテッド | トーンコンポーネントの検出のためのシステム、方法および装置 |
US8417185B2 (en) * | 2005-12-16 | 2013-04-09 | Vocollect, Inc. | Wireless headset and method for robust voice data communication |
US7885419B2 (en) | 2006-02-06 | 2011-02-08 | Vocollect, Inc. | Headset terminal with speech functionality |
US7773767B2 (en) | 2006-02-06 | 2010-08-10 | Vocollect, Inc. | Headset terminal with rear stability strap |
WO2007091956A2 (en) | 2006-02-10 | 2007-08-16 | Telefonaktiebolaget Lm Ericsson (Publ) | A voice detector and a method for suppressing sub-bands in a voice detector |
US8920343B2 (en) | 2006-03-23 | 2014-12-30 | Michael Edward Sabatino | Apparatus for acquiring and processing of physiological auditory signals |
TWI517562B (zh) | 2006-04-04 | 2016-01-11 | 杜比實驗室特許公司 | 用於將多聲道音訊信號之全面感知響度縮放一期望量的方法、裝置及電腦程式 |
JP5185254B2 (ja) * | 2006-04-04 | 2013-04-17 | ドルビー ラボラトリーズ ライセンシング コーポレイション | Mdct領域におけるオーディオ信号音量測定と改良 |
AU2007243586B2 (en) | 2006-04-27 | 2010-12-23 | Dolby Laboratories Licensing Corporation | Audio gain control using specific-loudness-based auditory event detection |
CN101149921B (zh) * | 2006-09-21 | 2011-08-10 | 展讯通信(上海)有限公司 | 一种静音检测方法和装置 |
WO2008051347A2 (en) | 2006-10-20 | 2008-05-02 | Dolby Laboratories Licensing Corporation | Audio dynamics processing using a reset |
US8521314B2 (en) * | 2006-11-01 | 2013-08-27 | Dolby Laboratories Licensing Corporation | Hierarchical control path with constraints for audio dynamics processing |
US20080147389A1 (en) * | 2006-12-15 | 2008-06-19 | Motorola, Inc. | Method and Apparatus for Robust Speech Activity Detection |
WO2008143569A1 (en) * | 2007-05-22 | 2008-11-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Improved voice activity detector |
CN101790758B (zh) * | 2007-07-13 | 2013-01-09 | 杜比实验室特许公司 | 用于控制音频信号的信号处理的设备和方法 |
US20090043577A1 (en) * | 2007-08-10 | 2009-02-12 | Ditech Networks, Inc. | Signal presence detection using bi-directional communication data |
US8190440B2 (en) * | 2008-02-29 | 2012-05-29 | Broadcom Corporation | Sub-band codec with native voice activity detection |
EP2107553B1 (en) * | 2008-03-31 | 2011-05-18 | Harman Becker Automotive Systems GmbH | Method for determining barge-in |
US8611556B2 (en) * | 2008-04-25 | 2013-12-17 | Nokia Corporation | Calibrating multiple microphones |
US8275136B2 (en) * | 2008-04-25 | 2012-09-25 | Nokia Corporation | Electronic device speech enhancement |
US8244528B2 (en) | 2008-04-25 | 2012-08-14 | Nokia Corporation | Method and apparatus for voice activity determination |
CN101572090B (zh) * | 2008-04-30 | 2013-03-20 | 向为 | 一种自适应多速率窄带编码方法及编码器 |
USD605629S1 (en) | 2008-09-29 | 2009-12-08 | Vocollect, Inc. | Headset |
TWI384423B (zh) * | 2008-11-26 | 2013-02-01 | Ind Tech Res Inst | 以聲音事件為基礎之緊急通報方法與系統以及行為軌跡建立方法 |
CN101609678B (zh) * | 2008-12-30 | 2011-07-27 | 华为技术有限公司 | 信号压缩方法及其压缩装置 |
US8160287B2 (en) | 2009-05-22 | 2012-04-17 | Vocollect, Inc. | Headset with adjustable headband |
KR20120091068A (ko) | 2009-10-19 | 2012-08-17 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 음성 활성 검출을 위한 검출기 및 방법 |
US8438659B2 (en) | 2009-11-05 | 2013-05-07 | Vocollect, Inc. | Portable computing device and headset interface |
FR2956539B1 (fr) * | 2010-02-16 | 2012-03-16 | Dominique Retali | Procede de detection du fonctionnement d'un dispositif de transmission sans fil de signaux de voix. |
US20120143604A1 (en) * | 2010-12-07 | 2012-06-07 | Rita Singh | Method for Restoring Spectral Components in Denoised Speech Signals |
CN102883244B (zh) * | 2011-07-25 | 2015-09-02 | 开曼群岛威睿电通股份有限公司 | 声震防护的装置及方法 |
US9363603B1 (en) | 2013-02-26 | 2016-06-07 | Xfrm Incorporated | Surround audio dialog balance assessment |
CN111261197B (zh) * | 2020-01-13 | 2022-11-25 | 中航华东光电(上海)有限公司 | 一种复杂噪声场景下的实时语音段落追踪方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358738A (en) * | 1976-06-07 | 1982-11-09 | Kahn Leonard R | Signal presence determination method for use in a contaminated medium |
JPS53105303A (en) * | 1977-02-25 | 1978-09-13 | Hitachi Ltd | Preprocessing system for audio recognition |
JPS5850360B2 (ja) * | 1978-05-12 | 1983-11-10 | 株式会社日立製作所 | 音声認識装置における前処理方法 |
JPS59115625A (ja) * | 1982-12-22 | 1984-07-04 | Nec Corp | 音声検出器 |
US4731846A (en) * | 1983-04-13 | 1988-03-15 | Texas Instruments Incorporated | Voice messaging system with pitch tracking based on adaptively filtered LPC residual signal |
DE3370423D1 (en) * | 1983-06-07 | 1987-04-23 | Ibm | Process for activity detection in a voice transmission system |
US4700392A (en) * | 1983-08-26 | 1987-10-13 | Nec Corporation | Speech signal detector having adaptive threshold values |
US4696039A (en) * | 1983-10-13 | 1987-09-22 | Texas Instruments Incorporated | Speech analysis/synthesis system with silence suppression |
JPH0748695B2 (ja) * | 1986-05-23 | 1995-05-24 | 株式会社日立製作所 | 音声符号化方式 |
EP0548054B1 (en) * | 1988-03-11 | 2002-12-11 | BRITISH TELECOMMUNICATIONS public limited company | Voice activity detector |
US5276765A (en) * | 1988-03-11 | 1994-01-04 | British Telecommunications Public Limited Company | Voice activity detection |
JP2573352B2 (ja) * | 1989-04-10 | 1997-01-22 | 富士通株式会社 | 音声検出装置 |
US5680508A (en) * | 1991-05-03 | 1997-10-21 | Itt Corporation | Enhancement of speech coding in background noise for low-rate speech coder |
IN184794B (ko) * | 1993-09-14 | 2000-09-30 | British Telecomm | |
US5659622A (en) * | 1995-11-13 | 1997-08-19 | Motorola, Inc. | Method and apparatus for suppressing noise in a communication system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8554552B2 (en) | 2008-10-31 | 2013-10-08 | Samsung Electronics Co., Ltd. | Apparatus and method for restoring voice |
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