SE501981C2 - Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler - Google Patents

Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler

Info

Publication number
SE501981C2
SE501981C2 SE9303613A SE9303613A SE501981C2 SE 501981 C2 SE501981 C2 SE 501981C2 SE 9303613 A SE9303613 A SE 9303613A SE 9303613 A SE9303613 A SE 9303613A SE 501981 C2 SE501981 C2 SE 501981C2
Authority
SE
Sweden
Prior art keywords
forming
time window
frames
stationary
signal
Prior art date
Application number
SE9303613A
Other languages
English (en)
Swedish (sv)
Other versions
SE9303613L (sv
SE9303613D0 (sv
Inventor
Fredrik Jansson
Original Assignee
Ericsson Telefon Ab L M
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
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9303613A priority Critical patent/SE501981C2/sv
Publication of SE9303613D0 publication Critical patent/SE9303613D0/xx
Priority to TW083109660A priority patent/TW303453B/zh
Priority to NZ275905A priority patent/NZ275905A/en
Priority to PCT/SE1994/000986 priority patent/WO1995012879A1/en
Priority to ES95900333T priority patent/ES2131295T3/es
Priority to EP95900333A priority patent/EP0677202B1/en
Priority to DE69416668T priority patent/DE69416668T2/de
Priority to KR1019950702720A priority patent/KR100278423B1/ko
Priority to CA002151398A priority patent/CA2151398A1/en
Priority to SG1996000516A priority patent/SG47396A1/en
Priority to JP7513159A priority patent/JPH08505715A/ja
Priority to DK95900333T priority patent/DK0677202T3/da
Priority to CN94190854A priority patent/CN1064771C/zh
Priority to AU81186/94A priority patent/AU672934B2/en
Priority to MYPI94002839A priority patent/MY113291A/en
Priority to US08/332,740 priority patent/US5579435A/en
Publication of SE9303613L publication Critical patent/SE9303613L/xx
Priority to FI953261A priority patent/FI953261A/fi
Publication of SE501981C2 publication Critical patent/SE501981C2/sv
Priority to HK98114522A priority patent/HK1014070A1/xx
Priority to GR990400815T priority patent/GR3029730T3/el

Links

Classifications

    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/012—Comfort noise or silence coding
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
SE9303613A 1993-11-02 1993-11-02 Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler SE501981C2 (sv)

Priority Applications (19)

Application Number Priority Date Filing Date Title
SE9303613A SE501981C2 (sv) 1993-11-02 1993-11-02 Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler
TW083109660A TW303453B (da) 1993-11-02 1994-10-18
AU81186/94A AU672934B2 (en) 1993-11-02 1994-10-19 Discriminating between stationary and non-stationary signals
CA002151398A CA2151398A1 (en) 1993-11-02 1994-10-19 Discriminating between stationary and non-stationary signals
DK95900333T DK0677202T3 (da) 1993-11-02 1994-10-19 Diskriminering imellem stationære og ikke-stationære signaler
ES95900333T ES2131295T3 (es) 1993-11-02 1994-10-19 Distincion entre señales estacionarias y no estacionarias.
EP95900333A EP0677202B1 (en) 1993-11-02 1994-10-19 Discriminating between stationary and non-stationary signals
DE69416668T DE69416668T2 (de) 1993-11-02 1994-10-19 Unterscheidung zwischen stationären und nicht-stationären signalen
KR1019950702720A KR100278423B1 (ko) 1993-11-02 1994-10-19 정상신호 및 비정상신호의 판별
NZ275905A NZ275905A (en) 1993-11-02 1994-10-19 Discriminating between stationary and non-stationary signals
SG1996000516A SG47396A1 (en) 1993-11-02 1994-10-19 Discriminating between stationary and non-stationary signals
JP7513159A JPH08505715A (ja) 1993-11-02 1994-10-19 定常的信号と非定常的信号との識別
PCT/SE1994/000986 WO1995012879A1 (en) 1993-11-02 1994-10-19 Discriminating between stationary and non-stationary signals
CN94190854A CN1064771C (zh) 1993-11-02 1994-10-19 鉴别稳态信号和非稳态信号的装置和方法
MYPI94002839A MY113291A (en) 1993-11-02 1994-10-26 Discriminating between stationary and non-stationary signals
US08/332,740 US5579435A (en) 1993-11-02 1994-11-01 Discriminating between stationary and non-stationary signals
FI953261A FI953261A (fi) 1993-11-02 1995-06-30 Vakaiden ja epävakaiden signaalien erottelu
HK98114522A HK1014070A1 (en) 1993-11-02 1998-12-21 Discriminating between stationary and non-stationary signals
GR990400815T GR3029730T3 (en) 1993-11-02 1999-03-19 Discriminating between stationary and non-stationary signals.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9303613A SE501981C2 (sv) 1993-11-02 1993-11-02 Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler

Publications (3)

Publication Number Publication Date
SE9303613D0 SE9303613D0 (sv) 1993-11-02
SE9303613L SE9303613L (sv) 1995-05-03
SE501981C2 true SE501981C2 (sv) 1995-07-03

Family

ID=20391616

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9303613A SE501981C2 (sv) 1993-11-02 1993-11-02 Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler

Country Status (19)

Country Link
US (1) US5579435A (da)
EP (1) EP0677202B1 (da)
JP (1) JPH08505715A (da)
KR (1) KR100278423B1 (da)
CN (1) CN1064771C (da)
AU (1) AU672934B2 (da)
CA (1) CA2151398A1 (da)
DE (1) DE69416668T2 (da)
DK (1) DK0677202T3 (da)
ES (1) ES2131295T3 (da)
FI (1) FI953261A (da)
GR (1) GR3029730T3 (da)
HK (1) HK1014070A1 (da)
MY (1) MY113291A (da)
NZ (1) NZ275905A (da)
SE (1) SE501981C2 (da)
SG (1) SG47396A1 (da)
TW (1) TW303453B (da)
WO (1) WO1995012879A1 (da)

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WO1996034382A1 (en) * 1995-04-28 1996-10-31 Northern Telecom Limited Methods and apparatus for distinguishing speech intervals from noise intervals in audio signals
FI105001B (fi) * 1995-06-30 2000-05-15 Nokia Mobile Phones Ltd Menetelmä odotusajan selvittämiseksi puhedekooderissa epäjatkuvassa lähetyksessä ja puhedekooderi sekä lähetin-vastaanotin
JPH0990974A (ja) * 1995-09-25 1997-04-04 Nippon Telegr & Teleph Corp <Ntt> 信号処理方法
FR2739995B1 (fr) * 1995-10-13 1997-12-12 Massaloux Dominique Procede et dispositif de creation d'un bruit de confort dans un systeme de transmission numerique de parole
SE506034C2 (sv) 1996-02-01 1997-11-03 Ericsson Telefon Ab L M Förfarande och anordning för förbättring av parametrar representerande brusigt tal
US6708146B1 (en) * 1997-01-03 2004-03-16 Telecommunications Research Laboratories Voiceband signal classifier
FR2762464B1 (fr) * 1997-04-16 1999-06-25 France Telecom Procede et dispositif de codage d'un signal audiofrequence par analyse lpc "avant" et "arriere"
US6453285B1 (en) * 1998-08-21 2002-09-17 Polycom, Inc. Speech activity detector for use in noise reduction system, and methods therefor
US7124079B1 (en) * 1998-11-23 2006-10-17 Telefonaktiebolaget Lm Ericsson (Publ) Speech coding with comfort noise variability feature for increased fidelity
US6662155B2 (en) * 2000-11-27 2003-12-09 Nokia Corporation Method and system for comfort noise generation in speech communication
FI20010235A (fi) * 2001-02-08 2002-08-09 Nokia Corp Menetelmä informaatiokehysten prosessoimiseksi
US6785523B2 (en) * 2001-05-04 2004-08-31 Atheros Communications, Inc. Self-correlation detection in automatic gain calibration
US6721547B2 (en) * 2001-05-04 2004-04-13 Atheros Communications, Inc. In-band and out-of-band signal detection for automatic gain calibration systems
SE521600C2 (sv) * 2001-12-04 2003-11-18 Global Ip Sound Ab Lågbittaktskodek
EP1484841B1 (en) * 2002-03-08 2018-12-26 Nippon Telegraph And Telephone Corporation DIGITAL SIGNAL ENCODING METHOD, DECODING METHOD, ENCODING DEVICE, DECODING DEVICE and DIGITAL SIGNAL DECODING PROGRAM
JP3879922B2 (ja) * 2002-09-12 2007-02-14 ソニー株式会社 信号処理システム、信号処理装置および方法、記録媒体、並びにプログラム
ATE343196T1 (de) * 2004-01-22 2006-11-15 Siemens Spa Italiana Sprachaktivitätsdetektion unter vewendung von komprimierten sprachsignal-parametern
US7649988B2 (en) * 2004-06-15 2010-01-19 Acoustic Technologies, Inc. Comfort noise generator using modified Doblinger noise estimate
JP4298672B2 (ja) * 2005-04-11 2009-07-22 キヤノン株式会社 混合分布ｈｍｍの状態の出力確率計算方法および装置
CN101308651B (zh) * 2007-05-17 2011-05-04 展讯通信（上海）有限公司 音频暂态信号的检测方法
US8483854B2 (en) 2008-01-28 2013-07-09 Qualcomm Incorporated Systems, methods, and apparatus for context processing using multiple microphones
WO2010146711A1 (ja) * 2009-06-19 2010-12-23 富士通株式会社 音声信号処理装置及び音声信号処理方法
WO2011052191A1 (ja) * 2009-10-26 2011-05-05 パナソニック株式会社 トーン判定装置およびトーン判定方法
JP5870476B2 (ja) 2010-08-04 2016-03-01 富士通株式会社 雑音推定装置、雑音推定方法および雑音推定プログラム
US10218327B2 (en) * 2011-01-10 2019-02-26 Zhinian Jing Dynamic enhancement of audio (DAE) in headset systems
BR112013026333B1 (pt) * 2011-04-28 2021-05-18 Telefonaktiebolaget L M Ericsson (Publ) método de classificação de sinal de áudio baseada em quadro, classificador de áudio, dispositivo de comunicação de áudio, e, disposição de codec de áudio
US11189303B2 (en) * 2017-09-25 2021-11-30 Cirrus Logic, Inc. Persistent interference detection
US10325588B2 (en) 2017-09-28 2019-06-18 International Business Machines Corporation Acoustic feature extractor selected according to status flag of frame of acoustic signal

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US4185168A (en) * 1976-05-04 1980-01-22 Causey G Donald Method and means for adaptively filtering near-stationary noise from an information bearing signal
US4544919A (en) * 1982-01-03 1985-10-01 Motorola, Inc. Method and means of determining coefficients for linear predictive coding
GB2137791B (en) * 1982-11-19 1986-02-26 Secr Defence Noise compensating spectral distance processor
US4764966A (en) * 1985-10-11 1988-08-16 International Business Machines Corporation Method and apparatus for voice detection having adaptive sensitivity
WO1989008910A1 (en) * 1988-03-11 1989-09-21 British Telecommunications Public Limited Company Voice activity detection
GB2239971B (en) * 1989-12-06 1993-09-29 Ca Nat Research Council System for separating speech from background noise
JP3277398B2 (ja) * 1992-04-15 2002-04-22 ソニー株式会社 有声音判別方法
US5485522A (en) * 1993-09-29 1996-01-16 Ericsson Ge Mobile Communications, Inc. System for adaptively reducing noise in speech signals

Also Published As

Publication number Publication date
DK0677202T3 (da) 1999-09-27
EP0677202A1 (en) 1995-10-18
KR100278423B1 (ko) 2001-01-15
HK1014070A1 (en) 1999-09-17
AU672934B2 (en) 1996-10-17
TW303453B (da) 1997-04-21
GR3029730T3 (en) 1999-06-30
FI953261A0 (fi) 1995-06-30
MY113291A (en) 2002-01-31
NZ275905A (en) 1996-11-26
AU8118694A (en) 1995-05-23
DE69416668T2 (de) 1999-07-22
CA2151398A1 (en) 1995-05-11
CN1116011A (zh) 1996-01-31
CN1064771C (zh) 2001-04-18
JPH08505715A (ja) 1996-06-18
KR960700497A (ko) 1996-01-20
FI953261A (fi) 1995-06-30
US5579435A (en) 1996-11-26
EP0677202B1 (en) 1999-02-24
DE69416668D1 (de) 1999-04-01
SE9303613L (sv) 1995-05-03
SG47396A1 (en) 1998-04-17
WO1995012879A1 (en) 1995-05-11
ES2131295T3 (es) 1999-07-16
SE9303613D0 (sv) 1993-11-02

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