ES2141234T3 - Discriminacion entre señales estacionarias y no estacionarias. - Google Patents

Discriminacion entre señales estacionarias y no estacionarias.

Info

Publication number
ES2141234T3
ES2141234T3 ES94917227T ES94917227T ES2141234T3 ES 2141234 T3 ES2141234 T3 ES 2141234T3 ES 94917227 T ES94917227 T ES 94917227T ES 94917227 T ES94917227 T ES 94917227T ES 2141234 T3 ES2141234 T3 ES 2141234T3
Authority
ES
Spain
Prior art keywords
stationary
test variable
discrimination
signals
energy
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
ES94917227T
Other languages
English (en)
Inventor
Karl Torbjorn Wigren
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 ES2141234T3 publication Critical patent/ES2141234T3/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
    • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Complex Calculations (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

UN DISCRIMINADOR (24) QUE DISCRIMINA ENTRE SEÑALES ESTACIONARIAS Y NO ESTACIONARIAS. SE CALCULA LA ENERGIA E(TI) DE LA SEÑAL DE ENTRADA EN UNA SERIE DE VENTANAS TI. ESTOS VALORES REPRESENTATIVOS DE LA ENERGIA SE ALMACENAN EN UNA MEDIO TAMPON (52) Y A PARTIR DE ESTOS VALORES ALMACENADOS SE CALCULA UNA VARIABLE DE ENSAYO VT (54). ESTA VARIABLE DE ENSAYO CONTIENE LA RELACION ENTRE EL VALOR DE ENERGIA MAXIMO Y EL VALOR DE ENERGIA MINIMO DE LA MEMORIA TAMPON. FINALMENTE LA VARIABLE DE ENSAYO SE COMPARA CON UN LIMITE DE ESTACIONAMIENTO GAMMA. SI LA VARIABLE DE ENSAYO SOBREPASA ESTE LIMITE SE CONSIDERA QUE LA SEÑAL NO ES ESTACIONARIA. ESTA DISCRIMINACION ES ESPECIALMENTE UTIL PARA DISCRIMINAR ENTRE LOS SONIDOS DE FONDO ESTACIONARIOS Y NO ESTACIONARIOS DE UN SISTEMA DE RADIOTELECOMUNICACION MOVIL.
ES94917227T 1993-05-26 1994-05-11 Discriminacion entre señales estacionarias y no estacionarias. Expired - Lifetime ES2141234T3 (es)

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
ES2141234T3 true ES2141234T3 (es) 2000-03-16

Family

ID=20390059

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94917227T Expired - Lifetime ES2141234T3 (es) 1993-05-26 1994-05-11 Discriminacion entre señales estacionarias y no estacionarias.

Country Status (19)

Country Link
US (1) US5579432A (es)
EP (1) EP0653091B1 (es)
JP (1) JPH07509792A (es)
KR (1) KR100220377B1 (es)
CN (2) CN1046366C (es)
AU (2) AU670383B2 (es)
CA (1) CA2139628A1 (es)
DE (1) DE69421498T2 (es)
DK (1) DK0653091T3 (es)
ES (1) ES2141234T3 (es)
FI (1) FI950311A (es)
GR (1) GR3032107T3 (es)
HK (1) HK1013881A1 (es)
NZ (1) NZ266908A (es)
RU (1) RU2127912C1 (es)
SE (1) SE501305C2 (es)
SG (1) SG46977A1 (es)
TW (1) TW324123B (es)
WO (1) WO1994028542A1 (es)

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
DE10026872A1 (de) 2000-04-28 2001-10-31 Deutsche Telekom Ag Verfahren zur Berechnung einer Sprachaktivitätsentscheidung (Voice Activity Detector)
EP1279164A1 (de) 2000-04-28 2003-01-29 Deutsche Telekom AG Verfahren zur berechnung einer sprachaktivitätsentscheidung (voice activity detector)
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
EP2945158B1 (en) 2007-03-05 2019-12-25 Telefonaktiebolaget LM Ericsson (publ) Method and arrangement for smoothing of stationary background noise
WO2008108721A1 (en) 2007-03-05 2008-09-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for controlling smoothing of stationary background noise
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
EP3023985B1 (en) 2010-12-29 2017-07-05 Samsung Electronics Co., Ltd Methods for audio signal encoding and decoding
US10230346B2 (en) 2011-01-10 2019-03-12 Zhinian Jing Acoustic voice activity 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 (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
DE3370423D1 (en) * 1983-06-07 1987-04-23 Ibm Process for activity detection in a voice transmission system
DE68929442T2 (de) * 1988-03-11 2003-10-02 British Telecomm Vorrichtung zur Erfassung von Sprachlauten
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
SE9301798L (sv) 1994-11-27
SE9301798D0 (sv) 1993-05-26
FI950311A0 (fi) 1995-01-24
WO1994028542A1 (en) 1994-12-08
CN1218945A (zh) 1999-06-09
JPH07509792A (ja) 1995-10-26
HK1013881A1 (en) 1999-09-10
KR100220377B1 (ko) 1999-09-15
CN1110070A (zh) 1995-10-11
EP0653091B1 (en) 1999-11-03
FI950311A (fi) 1995-01-24
DE69421498T2 (de) 2000-07-13
GR3032107T3 (en) 2000-03-31
TW324123B (en) 1998-01-01
AU681551B2 (en) 1997-08-28
CN1046366C (zh) 1999-11-10
AU6901694A (en) 1994-12-20
DK0653091T3 (da) 2000-01-03
AU4811296A (en) 1996-05-23
SE501305C2 (sv) 1995-01-09
DE69421498D1 (de) 1999-12-09
NZ266908A (en) 1997-03-24
SG46977A1 (en) 1998-03-20
RU2127912C1 (ru) 1999-03-20
CA2139628A1 (en) 1994-12-08
KR950702732A (ko) 1995-07-29
US5579432A (en) 1996-11-26
AU670383B2 (en) 1996-07-11
EP0653091A1 (en) 1995-05-17

Similar Documents

Publication Publication Date Title
ES2141234T3 (es) Discriminacion entre señales estacionarias y no estacionarias.
US5986357A (en) Occupancy sensor and method of operating same
US6078253A (en) Occupancy sensor and method of operating same
US5710555A (en) Siren detector
AU529926B2 (en) Paged receiver battery saver
ES2070138T3 (es) Telefono de manos libres que utiliza audio comprimido digitalmente para la deteccion de realimentacion acustica.
US4408096A (en) Sound or voice responsive timepiece
US3509558A (en) Wide range data compression system
KR860001645A (ko) 잡음 검출기
US4426730A (en) Method of detecting the presence of speech in a telephone signal and speech detector implementing said method
US3904969A (en) Audio periodicity squelch system
US5243657A (en) Automatic microphone sensitivity control circuit
ES548892A0 (es) Perfeccionamientos en un circuito para generar un criterio de recepcion o no recepcion de senales en un receptor ina- lambrico
USRE44102E1 (en) Location specific alarm relay (L.S.A.R)
US3878337A (en) Device for speech detection independent of amplitude
CA2053124A1 (en) Speech detection circuit
JPS6342592Y2 (es)
SE9701908L (sv) Mottagningsanordning som kan mottaga en sändningssignal för att bilda en talsignal med stor stabilitet
SU809665A1 (ru) Приемник тонального набора
KR930015941A (ko) 리모콘 수신부를 내장한 오디오 스피커
SU1594430A2 (ru) Устройство дл измерени скорости подвижного объекта
AU681380B2 (en) Siren detector
AU681380C (en) Siren detector
JPS6358408B2 (es)
JPS566516A (en) Automatic gain control circuit

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 653091

Country of ref document: ES