ES2131295T3 - Distincion entre señales estacionarias y no estacionarias. - Google Patents

Distincion entre señales estacionarias y no estacionarias.

Info

Publication number
ES2131295T3
ES2131295T3 ES95900333T ES95900333T ES2131295T3 ES 2131295 T3 ES2131295 T3 ES 2131295T3 ES 95900333 T ES95900333 T ES 95900333T ES 95900333 T ES95900333 T ES 95900333T ES 2131295 T3 ES2131295 T3 ES 2131295T3
Authority
ES
Spain
Prior art keywords
stationary
distinction
signs
measures
measure
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
ES95900333T
Other languages
English (en)
Inventor
Klas Fredrik Janis Jansson
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of ES2131295T3 publication Critical patent/ES2131295T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

LA ESTACIONALIDAD DEL CONJUNTO DE SEÑALES QUE CONTIENE SONIDOS DE FONDO SE PRUEBA EN UN SISTEMA DE COMUNICACION DE RADIO MOVIL. SE TOMAN MEDIDAS CONSECUTIVAS DELTAEN QUE REPRESENTAN CAMBIOS ESPECTRALES EN DICHAS SEÑALES DE UN CONJUNTO A OTRO (50,52,54,56,58). DE ESTAS MEDIDAS SE TOMA UNA SEGUNDA MEDIDA (M) DEL CAMBIO ESPECTRAL.FINALMENTE SE DETERMINA SI LA SEGUNDA MEDIDA (M) EXCEDE EL LIMITE ESTACIONARIO PREDETERIMINADO. SI ESTE ES EL CASO LAS SEÑALES SE CONSIDERAN ESTACIONARIAS.
ES95900333T 1993-11-02 1994-10-19 Distincion entre señales estacionarias y no estacionarias. Expired - Lifetime ES2131295T3 (es)

Applications Claiming Priority (2)

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
PCT/SE1994/000986 WO1995012879A1 (en) 1993-11-02 1994-10-19 Discriminating between stationary and non-stationary signals

Publications (1)

Publication Number Publication Date
ES2131295T3 true ES2131295T3 (es) 1999-07-16

Family

ID=20391616

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95900333T Expired - Lifetime ES2131295T3 (es) 1993-11-02 1994-10-19 Distincion entre señales estacionarias y no estacionarias.

Country Status (18)

Country Link
US (1) US5579435A (es)
EP (1) EP0677202B1 (es)
JP (1) JPH08505715A (es)
KR (1) KR100278423B1 (es)
CN (1) CN1064771C (es)
AU (1) AU672934B2 (es)
CA (1) CA2151398A1 (es)
DE (1) DE69416668T2 (es)
DK (1) DK0677202T3 (es)
ES (1) ES2131295T3 (es)
FI (1) FI953261A7 (es)
GR (1) GR3029730T3 (es)
MY (1) MY113291A (es)
NZ (1) NZ275905A (es)
SE (1) SE501981C2 (es)
SG (1) SG47396A1 (es)
TW (1) TW303453B (es)
WO (1) WO1995012879A1 (es)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FI20010235A7 (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
US7599835B2 (en) * 2002-03-08 2009-10-06 Nippon Telegraph And Telephone Corporation Digital signal encoding method, decoding method, encoding device, decoding device, digital signal encoding program, and 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
DE602004002845T2 (de) * 2004-01-22 2007-06-06 Siemens S.P.A. Sprachaktivitätsdetektion unter Verwendung 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
US8560307B2 (en) 2008-01-28 2013-10-15 Qualcomm Incorporated Systems, methods, and apparatus for context suppression using receivers
CN102804260B (zh) * 2009-06-19 2014-10-08 富士通株式会社 声音信号处理装置以及声音信号处理方法
US8670980B2 (en) 2009-10-26 2014-03-11 Panasonic Corporation Tone determination device and method
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
US10230346B2 (en) * 2011-01-10 2019-03-12 Zhinian Jing Acoustic voice activity detection
WO2012146290A1 (en) * 2011-04-28 2012-11-01 Telefonaktiebolaget L M Ericsson (Publ) Frame based audio signal classification
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)

* Cited by examiner, † Cited by third party
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
GR3029730T3 (en) 1999-06-30
MY113291A (en) 2002-01-31
NZ275905A (en) 1996-11-26
EP0677202B1 (en) 1999-02-24
JPH08505715A (ja) 1996-06-18
CA2151398A1 (en) 1995-05-11
SE501981C2 (sv) 1995-07-03
CN1116011A (zh) 1996-01-31
DK0677202T3 (da) 1999-09-27
KR960700497A (ko) 1996-01-20
HK1014070A1 (en) 1999-09-17
FI953261L (fi) 1995-06-30
FI953261A0 (fi) 1995-06-30
DE69416668D1 (de) 1999-04-01
AU8118694A (en) 1995-05-23
AU672934B2 (en) 1996-10-17
EP0677202A1 (en) 1995-10-18
SE9303613D0 (sv) 1993-11-02
TW303453B (es) 1997-04-21
SE9303613L (sv) 1995-05-03
KR100278423B1 (ko) 2001-01-15
DE69416668T2 (de) 1999-07-22
WO1995012879A1 (en) 1995-05-11
SG47396A1 (en) 1998-04-17
US5579435A (en) 1996-11-26
FI953261A7 (fi) 1995-06-30
CN1064771C (zh) 2001-04-18

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