ES2188588T3 - VOICE ACTIVITY DETECTOR. - Google Patents

VOICE ACTIVITY DETECTOR.

Info

Publication number
ES2188588T3
ES2188588T3 ES93200015T ES93200015T ES2188588T3 ES 2188588 T3 ES2188588 T3 ES 2188588T3 ES 93200015 T ES93200015 T ES 93200015T ES 93200015 T ES93200015 T ES 93200015T ES 2188588 T3 ES2188588 T3 ES 2188588T3
Authority
ES
Spain
Prior art keywords
buffer
voice activity
activity detector
detector
entry
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
Application number
ES93200015T
Other languages
Spanish (es)
Inventor
Daniel Kenneth Freeman
Ivan Boyd
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB888805795A external-priority patent/GB8805795D0/en
Priority claimed from GB888813346A external-priority patent/GB8813346D0/en
Priority claimed from GB888820105A external-priority patent/GB8820105D0/en
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of ES2188588T3 publication Critical patent/ES2188588T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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

Abstract

UN PRIMER DETECTOR 3 A 6 QUE FUNCIONA A BASE DE REALIZAR UNA MEDIDA DE LA SIMILITUD ESPECTRAL ENTRE UNA SEÑAL DE ENTRADA Y UNA SEÑAL DE RUIDO ALMACENADA EN UN BUFFER 15, COMPARANDOSE LA MEDIDA (7) CON UN VALOR UMBRAL. EL BUFFER 15 SE ACTUALIZA A PARTIR DE LA ENTRADA SOLO DURANTE PERIODOS EN QUE UN DETECTOR AUXILIAR 20 INDICA QUE LA ENTRADA NO TIENE VOZ; EL DETECTOR AUXILIAR FUNCIONA A BASE DE MEDIR LA SIMILITUD ESPECTRAL ENTRE LA SEÑAL DE ENTRADA Y UNA VERSION RETARDADA DE LA MISMA (BUFFER 24).A FIRST DETECTOR 3 TO 6 THAT OPERATES BASED ON MAKING A MEASUREMENT OF SPECTRAL SIMILARITY BETWEEN AN INPUT SIGNAL AND A NOISE SIGNAL STORED IN A BUFFER 15, SHARING THE MEASURE (7) WITH A THRESHOLD. BUFFER 15 IS UPDATED FROM THE ENTRY ONLY FOR PERIODS IN WHICH AN AUXILIARY DETECTOR 20 INDICATES THAT THE ENTRY DOES NOT HAVE VOICE; THE AUXILIARY DETECTOR WORKS BASED ON MEASURING SPECTRAL SIMILARITY BETWEEN THE INPUT SIGNAL AND A DELAYED VERSION OF THE SAME (BUFFER 24).

ES93200015T 1988-03-11 1989-03-10 VOICE ACTIVITY DETECTOR. Expired - Lifetime ES2188588T3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB888805795A GB8805795D0 (en) 1988-03-11 1988-03-11 Voice activity detector
GB888813346A GB8813346D0 (en) 1988-06-06 1988-06-06 Voice activity detection
GB888820105A GB8820105D0 (en) 1988-08-24 1988-08-24 Voice activity detection

Publications (1)

Publication Number Publication Date
ES2188588T3 true ES2188588T3 (en) 2003-07-01

Family

ID=27263821

Family Applications (2)

Application Number Title Priority Date Filing Date
ES89302422T Expired - Lifetime ES2047664T3 (en) 1988-03-11 1989-03-10 VOICE ACTIVITY DETECTION.
ES93200015T Expired - Lifetime ES2188588T3 (en) 1988-03-11 1989-03-10 VOICE ACTIVITY DETECTOR.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES89302422T Expired - Lifetime ES2047664T3 (en) 1988-03-11 1989-03-10 VOICE ACTIVITY DETECTION.

Country Status (16)

Country Link
EP (2) EP0335521B1 (en)
JP (2) JP3321156B2 (en)
KR (1) KR0161258B1 (en)
AU (1) AU608432B2 (en)
BR (1) BR8907308A (en)
CA (1) CA1335003C (en)
DE (2) DE68929442T2 (en)
DK (1) DK175478B1 (en)
ES (2) ES2047664T3 (en)
FI (2) FI110726B (en)
HK (1) HK135896A (en)
IE (1) IE61863B1 (en)
NO (2) NO304858B1 (en)
NZ (1) NZ228290A (en)
PT (1) PT89978B (en)
WO (1) WO1989008910A1 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2643593B2 (en) * 1989-11-28 1997-08-20 日本電気株式会社 Voice / modem signal identification circuit
CA2040025A1 (en) * 1990-04-09 1991-10-10 Hideki Satoh Speech detection apparatus with influence of input level and noise reduced
US5241692A (en) * 1991-02-19 1993-08-31 Motorola, Inc. Interference reduction system for a speech recognition device
FR2697101B1 (en) * 1992-10-21 1994-11-25 Sextant Avionique Speech detection method.
SE470577B (en) * 1993-01-29 1994-09-19 Ericsson Telefon Ab L M Method and apparatus for encoding and / or decoding background noise
JPH06332492A (en) * 1993-05-19 1994-12-02 Matsushita Electric Ind Co Ltd Method and device for voice detection
SE501305C2 (en) * 1993-05-26 1995-01-09 Ericsson Telefon Ab L M Method and apparatus for discriminating between stationary and non-stationary signals
EP0633658A3 (en) * 1993-07-06 1996-01-17 Hughes Aircraft Co Voice activated transmission coupled AGC circuit.
IN184794B (en) * 1993-09-14 2000-09-30 British Telecomm
SE501981C2 (en) * 1993-11-02 1995-07-03 Ericsson Telefon Ab L M Method and apparatus for discriminating between stationary and non-stationary signals
US5742734A (en) * 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
FR2727236B1 (en) * 1994-11-22 1996-12-27 Alcatel Mobile Comm France DETECTION OF VOICE ACTIVITY
WO1996034382A1 (en) * 1995-04-28 1996-10-31 Northern Telecom Limited Methods and apparatus for distinguishing speech intervals from noise intervals in audio signals
GB2306010A (en) * 1995-10-04 1997-04-23 Univ Wales Medicine A method of classifying signals
FR2739995B1 (en) * 1995-10-13 1997-12-12 Massaloux Dominique METHOD AND DEVICE FOR CREATING COMFORT NOISE IN A DIGITAL SPEECH TRANSMISSION SYSTEM
US5794199A (en) * 1996-01-29 1998-08-11 Texas Instruments Incorporated Method and system for improved discontinuous speech transmission
EP0909442B1 (en) * 1996-07-03 2002-10-09 BRITISH TELECOMMUNICATIONS public limited company Voice activity detector
US6618701B2 (en) * 1999-04-19 2003-09-09 Motorola, Inc. Method and system for noise suppression using external voice activity detection
DE10052626A1 (en) * 2000-10-24 2002-05-02 Alcatel Sa Adaptive noise level estimator
CN1617606A (en) * 2003-11-12 2005-05-18 皇家飞利浦电子股份有限公司 Method and device for transmitting non voice data in voice channel
US7139701B2 (en) * 2004-06-30 2006-11-21 Motorola, Inc. Method for detecting and attenuating inhalation noise in a communication system
US7155388B2 (en) * 2004-06-30 2006-12-26 Motorola, Inc. Method and apparatus for characterizing inhalation noise and calculating parameters based on the characterization
FI20045315A (en) * 2004-08-30 2006-03-01 Nokia Corp Detection of voice activity in an audio signal
US8708702B2 (en) * 2004-09-16 2014-04-29 Lena Foundation Systems and methods for learning using contextual feedback
US8775168B2 (en) 2006-08-10 2014-07-08 Stmicroelectronics Asia Pacific Pte, Ltd. Yule walker based low-complexity voice activity detector in noise suppression systems
US8175871B2 (en) 2007-09-28 2012-05-08 Qualcomm Incorporated Apparatus and method of noise and echo reduction in multiple microphone audio systems
US8954324B2 (en) * 2007-09-28 2015-02-10 Qualcomm Incorporated Multiple microphone voice activity detector
US8223988B2 (en) 2008-01-29 2012-07-17 Qualcomm Incorporated Enhanced blind source separation algorithm for highly correlated mixtures
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
ES2371619B1 (en) * 2009-10-08 2012-08-08 Telefónica, S.A. VOICE SEGMENT DETECTION PROCEDURE.
CN104485118A (en) 2009-10-19 2015-04-01 瑞典爱立信有限公司 Detector and method for voice activity detection
CN108985277B (en) * 2018-08-24 2020-11-10 广东石油化工学院 Method and system for filtering background noise in power signal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509281A (en) * 1966-09-29 1970-04-28 Ibm Voicing detection system
US4052568A (en) * 1976-04-23 1977-10-04 Communications Satellite Corporation Digital voice switch
US4358738A (en) * 1976-06-07 1982-11-09 Kahn Leonard R Signal presence determination method for use in a contaminated medium
JPS5636246A (en) * 1979-08-31 1981-04-09 Nec Corp Stereo signal demodulating circuit
JPS59115625A (en) * 1982-12-22 1984-07-04 Nec Corp Voice detector
DE3370423D1 (en) * 1983-06-07 1987-04-23 Ibm Process for activity detection in a voice transmission system
JPS6196817A (en) * 1984-10-17 1986-05-15 Sharp Corp Filter

Also Published As

Publication number Publication date
BR8907308A (en) 1991-03-19
NZ228290A (en) 1992-01-29
DE68910859D1 (en) 1994-01-05
NO903936D0 (en) 1990-09-10
FI20010933A (en) 2001-05-04
EP0548054B1 (en) 2002-12-11
DE68910859T2 (en) 1994-12-08
IE890774L (en) 1989-09-11
IE61863B1 (en) 1994-11-30
JP3321156B2 (en) 2002-09-03
PT89978A (en) 1989-11-10
DE68929442T2 (en) 2003-10-02
NO903936L (en) 1990-11-09
JP3423906B2 (en) 2003-07-07
FI904410A0 (en) 1990-09-07
KR900700993A (en) 1990-08-17
DK175478B1 (en) 2004-11-08
PT89978B (en) 1995-03-01
DK215690D0 (en) 1990-09-07
AU608432B2 (en) 1991-03-28
NO982568D0 (en) 1998-06-04
NO304858B1 (en) 1999-02-22
WO1989008910A1 (en) 1989-09-21
KR0161258B1 (en) 1999-03-20
DE68929442D1 (en) 2003-01-23
AU3355489A (en) 1989-10-05
CA1335003C (en) 1995-03-28
EP0548054A2 (en) 1993-06-23
EP0548054A3 (en) 1994-01-12
EP0335521A1 (en) 1989-10-04
HK135896A (en) 1996-08-02
NO316610B1 (en) 2004-03-08
DK215690A (en) 1990-09-07
JP2000148172A (en) 2000-05-26
ES2047664T3 (en) 1994-03-01
FI110726B (en) 2003-03-14
FI115328B (en) 2005-04-15
JPH03504283A (en) 1991-09-19
EP0335521B1 (en) 1993-11-24
NO982568L (en) 1990-11-09

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