EP0548054A3 - - Google Patents

Download PDF

Info

Publication number
EP0548054A3
EP0548054A3 EP19930200015 EP93200015A EP0548054A3 EP 0548054 A3 EP0548054 A3 EP 0548054A3 EP 19930200015 EP19930200015 EP 19930200015 EP 93200015 A EP93200015 A EP 93200015A EP 0548054 A3 EP0548054 A3 EP 0548054A3
Authority
EP
European Patent Office
Prior art keywords
input signal
measure
voice activity
activity detection
continually
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.)
Granted
Application number
EP19930200015
Other versions
EP0548054B1 (en
EP0548054A2 (en
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.)
LG Electronics Inc
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
Publication of EP0548054A2 publication Critical patent/EP0548054A2/en
Publication of EP0548054A3 publication Critical patent/EP0548054A3/xx
Application granted granted Critical
Publication of EP0548054B1 publication Critical patent/EP0548054B1/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

The first aspect provides a voice activity detection appts. for receiving an input signal, estimating the noise signal component of the input signal and continually forming a measure M of the spectral similarity between a portion of the input signal and the noise signal. A circuit is provided to compare a parameter derived from the measure M with a threshold value T to produce an output to indicate the presence, or absence, of speech depending on whether, or not, that value is exceeded. A second aspect covers voice activity detection appts. which continually forms a spectral distortion measure and carries out a comparison.
EP93200015A 1988-03-11 1989-03-10 Voice activity detector Expired - Lifetime EP0548054B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB888805795A GB8805795D0 (en) 1988-03-11 1988-03-11 Voice activity detector
GB8805795 1988-03-11
GB888813346A GB8813346D0 (en) 1988-06-06 1988-06-06 Voice activity detection
GB8813346 1988-06-06
GB8820105 1988-08-24
GB888820105A GB8820105D0 (en) 1988-08-24 1988-08-24 Voice activity detection
EP89302422A EP0335521B1 (en) 1988-03-11 1989-03-10 Voice activity detection

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP89302422.4 Division 1989-03-10
EP89302422A Division EP0335521B1 (en) 1988-03-11 1989-03-10 Voice activity detection

Publications (3)

Publication Number Publication Date
EP0548054A2 EP0548054A2 (en) 1993-06-23
EP0548054A3 true EP0548054A3 (en) 1994-01-12
EP0548054B1 EP0548054B1 (en) 2002-12-11

Family

ID=27263821

Family Applications (2)

Application Number Title Priority Date Filing Date
EP89302422A Expired - Lifetime EP0335521B1 (en) 1988-03-11 1989-03-10 Voice activity detection
EP93200015A Expired - Lifetime EP0548054B1 (en) 1988-03-11 1989-03-10 Voice activity detector

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP89302422A Expired - Lifetime EP0335521B1 (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) ES2188588T3 (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
GB2317084B (en) * 1995-04-28 2000-01-19 Northern Telecom Ltd 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
US6427134B1 (en) 1996-07-03 2002-07-30 British Telecommunications Public Limited Company Voice activity detector for calculating spectral irregularity measure on the basis of spectral difference measurements
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
US7155388B2 (en) * 2004-06-30 2006-12-26 Motorola, Inc. Method and apparatus for characterizing inhalation noise and calculating parameters based on the characterization
US7139701B2 (en) * 2004-06-30 2006-11-21 Motorola, Inc. Method for detecting and attenuating inhalation noise in a communication system
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
US8954324B2 (en) 2007-09-28 2015-02-10 Qualcomm Incorporated Multiple microphone voice activity detector
US8175871B2 (en) 2007-09-28 2012-05-08 Qualcomm Incorporated Apparatus and method of noise and echo reduction in multiple microphone audio systems
US8223988B2 (en) 2008-01-29 2012-07-17 Qualcomm Incorporated Enhanced blind source separation algorithm for highly correlated mixtures
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
WO2009130388A1 (en) 2008-04-25 2009-10-29 Nokia Corporation Calibrating multiple microphones
ES2371619B1 (en) * 2009-10-08 2012-08-08 Telefónica, S.A. VOICE SEGMENT DETECTION PROCEDURE.
WO2011049516A1 (en) * 2009-10-19 2011-04-28 Telefonaktiebolaget Lm Ericsson (Publ) 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

Citations (4)

* 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
US4688256A (en) * 1982-12-22 1987-08-18 Nec Corporation Speech detector capable of avoiding an interruption by monitoring a variation of a spectrum of an input signal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5636246A (en) * 1979-08-31 1981-04-09 Nec Corp Stereo signal demodulating circuit
EP0127718B1 (en) * 1983-06-07 1987-03-18 International Business Machines Corporation Process for activity detection in a voice transmission system
JPS6196817A (en) * 1984-10-17 1986-05-15 Sharp Corp Filter

Patent Citations (4)

* 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
US4688256A (en) * 1982-12-22 1987-08-18 Nec Corporation Speech detector capable of avoiding an interruption by monitoring a variation of a spectrum of an input signal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ALTA FREQUENZA, vol. 53, no. 3, May-June 1984, pages 190-195, Milan, IT; G. AUDISIO et al.: "Noisy speech enhancement: a comparative analysis of three different techniques" *

Also Published As

Publication number Publication date
DK215690D0 (en) 1990-09-07
ES2188588T3 (en) 2003-07-01
NO903936D0 (en) 1990-09-10
BR8907308A (en) 1991-03-19
KR900700993A (en) 1990-08-17
NZ228290A (en) 1992-01-29
DE68929442T2 (en) 2003-10-02
KR0161258B1 (en) 1999-03-20
DK215690A (en) 1990-09-07
NO304858B1 (en) 1999-02-22
NO316610B1 (en) 2004-03-08
JP3423906B2 (en) 2003-07-07
DE68910859D1 (en) 1994-01-05
AU3355489A (en) 1989-10-05
JP2000148172A (en) 2000-05-26
FI904410A0 (en) 1990-09-07
NO982568L (en) 1990-11-09
AU608432B2 (en) 1991-03-28
ES2047664T3 (en) 1994-03-01
JP3321156B2 (en) 2002-09-03
IE890774L (en) 1989-09-11
JPH03504283A (en) 1991-09-19
EP0548054B1 (en) 2002-12-11
PT89978A (en) 1989-11-10
NO982568D0 (en) 1998-06-04
WO1989008910A1 (en) 1989-09-21
EP0335521A1 (en) 1989-10-04
PT89978B (en) 1995-03-01
FI115328B (en) 2005-04-15
HK135896A (en) 1996-08-02
EP0548054A2 (en) 1993-06-23
CA1335003C (en) 1995-03-28
NO903936L (en) 1990-11-09
FI20010933A (en) 2001-05-04
DE68929442D1 (en) 2003-01-23
EP0335521B1 (en) 1993-11-24
FI110726B (en) 2003-03-14
DE68910859T2 (en) 1994-12-08
DK175478B1 (en) 2004-11-08
IE61863B1 (en) 1994-11-30

Similar Documents

Publication Publication Date Title
HK135896A (en) Voice activity detection
GB1435779A (en) Word recognition
JPS56104399A (en) Voice interval detection system
SE8201598L (en) DEVICE FOR REDUCING THE SOUND IN A SOUND SIGNAL
BR9407535A (en) Voice activity detector
DE69409121D1 (en) INTERFERENCE REDUCTION SYSTEM FOR A BINAURAL HEARING AID
ATE268494T1 (en) ADAPTIVE VOICE SIGNAL FILTER
CA2138810A1 (en) Method of and Apparatus for Identifying a System with Adaptive Filter
WO2001073751A8 (en) Speech presence measurement detection techniques
JPS6245730B2 (en)
MXPA00001875A (en) Voice recognition system and method.
CA2404441A1 (en) Robust parameters for noisy speech recognition
CA2034333A1 (en) Voice signal processing device
JPH08221097A (en) Detection method of audio component
CA2053124A1 (en) Speech detection circuit
JPS5491008A (en) Audio recognition unit
JPH0394300A (en) Voice detector
JPS63127296A (en) Voice section detection system
JPS57184334A (en) Noise eliminating device
JPS60230200A (en) Voice detection circuit
JPH06175676A (en) Voice detector
IT1117427B (en) Sinusoidal acoustic signals recognition system - uses signal level detection, filtering integration, and wave shaping

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AC Divisional application: reference to earlier application

Ref document number: 335521

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19930817

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17Q First examination report despatched

Effective date: 19970716

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 335521

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

REF Corresponds to:

Ref document number: 229683

Country of ref document: AT

Date of ref document: 20021215

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

RIC1 Information provided on ipc code assigned before grant

Free format text: 7G 10L 11/02 A

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 68929442

Country of ref document: DE

Date of ref document: 20030123

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2188588

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

NLS Nl: assignments of ep-patents

Owner name: LG ELECTRONICS INC.

26N No opposition filed

Effective date: 20030912

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1013496

Country of ref document: HK

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080306

Year of fee payment: 20

Ref country code: NL

Payment date: 20080303

Year of fee payment: 20

Ref country code: GB

Payment date: 20080305

Year of fee payment: 20

Ref country code: LU

Payment date: 20080313

Year of fee payment: 20

Ref country code: IT

Payment date: 20080327

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080311

Year of fee payment: 20

Ref country code: ES

Payment date: 20080418

Year of fee payment: 20

Ref country code: DE

Payment date: 20080306

Year of fee payment: 20

BE20 Be: patent expired

Owner name: *LG ELECTRONICS INC.

Effective date: 20090310

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20081013

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20090309

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20090310

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090311