TW324123B - Discriminating between stationary and non-stationary signals - Google Patents

Discriminating between stationary and non-stationary signals

Info

Publication number
TW324123B
TW324123B TW083104232A TW83104232A TW324123B TW 324123 B TW324123 B TW 324123B TW 083104232 A TW083104232 A TW 083104232A TW 83104232 A TW83104232 A TW 83104232A TW 324123 B TW324123 B TW 324123B
Authority
TW
Taiwan
Prior art keywords
stationary
decoder
compiler
signal
filter
Prior art date
Application number
TW083104232A
Other languages
English (en)
Inventor
Torbjorn Wigren Karl
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
Application granted granted Critical
Publication of TW324123B publication Critical patent/TW324123B/zh

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
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • 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
    • G10L19/04—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 using predictive techniques
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
  • Circuits Of Receivers 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)
TW083104232A 1993-05-26 1994-05-11 Discriminating between stationary and non-stationary signals TW324123B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9301798A SE501305C2 (sv) 1993-05-26 1993-05-26 Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler

Publications (1)

Publication Number Publication Date
TW324123B true TW324123B (en) 1998-01-01

Family

ID=20390059

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083104232A TW324123B (en) 1993-05-26 1994-05-11 Discriminating between stationary and non-stationary signals

Country Status (19)

Country Link
US (1) US5579432A (zh)
EP (1) EP0653091B1 (zh)
JP (1) JPH07509792A (zh)
KR (1) KR100220377B1 (zh)
CN (2) CN1046366C (zh)
AU (2) AU670383B2 (zh)
CA (1) CA2139628A1 (zh)
DE (1) DE69421498T2 (zh)
DK (1) DK0653091T3 (zh)
ES (1) ES2141234T3 (zh)
FI (1) FI950311A0 (zh)
GR (1) GR3032107T3 (zh)
HK (1) HK1013881A1 (zh)
NZ (1) NZ266908A (zh)
RU (1) RU2127912C1 (zh)
SE (1) SE501305C2 (zh)
SG (1) SG46977A1 (zh)
TW (1) TW324123B (zh)
WO (1) WO1994028542A1 (zh)

Families Citing this family (15)

* 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
AUPO170196A0 (en) * 1996-08-16 1996-09-12 University Of Alberta A finite-dimensional filter
US6058359A (en) * 1998-03-04 2000-05-02 Telefonaktiebolaget L M Ericsson Speech coding including soft adaptability feature
US7254532B2 (en) 2000-04-28 2007-08-07 Deutsche Telekom Ag Method for making a voice activity decision
DE10026904A1 (de) 2000-04-28 2002-01-03 Deutsche Telekom Ag Verfahren zur Berechnung des die Lautstärke mitbestimmenden Verstärkungsfaktors für ein codiert übertragenes Sprachsignal
JP3812887B2 (ja) * 2001-12-21 2006-08-23 富士通株式会社 信号処理システムおよび方法
CA2420129A1 (en) * 2003-02-17 2004-08-17 Catena Networks, Canada, Inc. A method for robustly detecting voice activity
ES2548010T3 (es) 2007-03-05 2015-10-13 Telefonaktiebolaget Lm Ericsson (Publ) Procedimiento y dispositivo para suavizar ruido de fondo estacionario
PL2118889T3 (pl) 2007-03-05 2013-03-29 Ericsson Telefon Ab L M Sposób i sterownik do wygładzania stacjonarnego szumu tła
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
CN101546556B (zh) * 2008-03-28 2011-03-23 展讯通信（上海）有限公司 用于音频内容识别的分类系统
KR101826331B1 (ko) * 2010-09-15 2018-03-22 삼성전자주식회사 고주파수 대역폭 확장을 위한 부호화/복호화 장치 및 방법
CA2929800C (en) 2010-12-29 2017-12-19 Samsung Electronics Co., Ltd. Apparatus and method for encoding/decoding for high-frequency bandwidth extension
US10218327B2 (en) * 2011-01-10 2019-02-26 Zhinian Jing Dynamic enhancement of audio (DAE) in headset systems
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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0127718B1 (fr) * 1983-06-07 1987-03-18 International Business Machines Corporation Procédé de détection d'activité dans un système de transmission de la voix
CA1335003C (en) * 1988-03-11 1995-03-28 Daniel Kenneth Freeman Voice activity detection
US5276765A (en) * 1988-03-11 1994-01-04 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
EP0538536A1 (en) * 1991-10-25 1993-04-28 International Business Machines Corporation Method for detecting voice presence on a communication line
SE470577B (sv) * 1993-01-29 1994-09-19 Ericsson Telefon Ab L M Förfarande och anordning för kodning och/eller avkodning av bakgrundsljud
US5459814A (en) * 1993-03-26 1995-10-17 Hughes Aircraft Company Voice activity detector for speech signals in variable background noise

Also Published As

Publication number Publication date
NZ266908A (en) 1997-03-24
SG46977A1 (en) 1998-03-20
AU4811296A (en) 1996-05-23
FI950311A (fi) 1995-01-24
JPH07509792A (ja) 1995-10-26
RU2127912C1 (ru) 1999-03-20
HK1013881A1 (en) 1999-09-10
FI950311A0 (fi) 1995-01-24
KR100220377B1 (ko) 1999-09-15
DE69421498D1 (de) 1999-12-09
SE9301798D0 (sv) 1993-05-26
CN1218945A (zh) 1999-06-09
AU670383B2 (en) 1996-07-11
EP0653091B1 (en) 1999-11-03
AU681551B2 (en) 1997-08-28
CA2139628A1 (en) 1994-12-08
CN1110070A (zh) 1995-10-11
AU6901694A (en) 1994-12-20
GR3032107T3 (en) 2000-03-31
EP0653091A1 (en) 1995-05-17
DE69421498T2 (de) 2000-07-13
SE501305C2 (sv) 1995-01-09
US5579432A (en) 1996-11-26
WO1994028542A1 (en) 1994-12-08
KR950702732A (ko) 1995-07-29
ES2141234T3 (es) 2000-03-16
CN1046366C (zh) 1999-11-10
DK0653091T3 (da) 2000-01-03
SE9301798L (sv) 1994-11-27

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