HK1057939A1 - Synthesis of an excitation signal for use in a comfort noise generator - Google Patents

Synthesis of an excitation signal for use in a comfort noise generator

Info

Publication number
HK1057939A1
HK1057939A1 HK03109153A HK03109153A HK1057939A1 HK 1057939 A1 HK1057939 A1 HK 1057939A1 HK 03109153 A HK03109153 A HK 03109153A HK 03109153 A HK03109153 A HK 03109153A HK 1057939 A1 HK1057939 A1 HK 1057939A1
Authority
HK
Hong Kong
Prior art keywords
synthesis
excitation signal
noise generator
comfort noise
comfort
Prior art date
Application number
HK03109153A
Other languages
English (en)
Inventor
Massaloux Dominique
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Publication of HK1057939A1 publication Critical patent/HK1057939A1/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/175—Speech activity or inactivity detectors
    • 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
    • G10L25/18—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 spectral information of each sub-band

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
HK03109153A 1995-10-13 2003-12-16 Synthesis of an excitation signal for use in a comfort noise generator HK1057939A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9512039A FR2739995B1 (fr) 1995-10-13 1995-10-13 Procede et dispositif de creation d'un bruit de confort dans un systeme de transmission numerique de parole

Publications (1)

Publication Number Publication Date
HK1057939A1 true HK1057939A1 (en) 2004-04-23

Family

ID=9483505

Family Applications (2)

Application Number Title Priority Date Filing Date
HK03109153A HK1057939A1 (en) 1995-10-13 2003-12-16 Synthesis of an excitation signal for use in a comfort noise generator
HK04104421.7A HK1062506A1 (en) 1995-10-13 2004-06-17 Generation of a frame descriptor of silence for generation of comfort noise

Family Applications After (1)

Application Number Title Priority Date Filing Date
HK04104421.7A HK1062506A1 (en) 1995-10-13 2004-06-17 Generation of a frame descriptor of silence for generation of comfort noise

Country Status (8)

Country Link
US (1) US5812965A (xx)
EP (3) EP0768770B1 (xx)
JP (2) JP3781495B2 (xx)
KR (1) KR100357254B1 (xx)
CN (1) CN1104710C (xx)
DE (3) DE69631318T2 (xx)
FR (1) FR2739995B1 (xx)
HK (2) HK1057939A1 (xx)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978756A (en) * 1996-03-28 1999-11-02 Intel Corporation Encoding audio signals using precomputed silence
SE507370C2 (sv) * 1996-09-13 1998-05-18 Ericsson Telefon Ab L M Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare
US6269331B1 (en) * 1996-11-14 2001-07-31 Nokia Mobile Phones Limited Transmission of comfort noise parameters during discontinuous transmission
US5960389A (en) 1996-11-15 1999-09-28 Nokia Mobile Phones Limited Methods for generating comfort noise during discontinuous transmission
JP3575967B2 (ja) * 1996-12-02 2004-10-13 沖電気工業株式会社 音声通信システムおよび音声通信方法
KR100205251B1 (ko) * 1996-12-09 1999-07-01 정선종 코드분할 다중접속 기지국에서의 음성 부호화 장치 및 방법
FR2758676A1 (fr) * 1997-01-21 1998-07-24 Philips Electronics Nv Methode de reduction des clics dans un systeme de transmission de donnees
ES2190578T3 (es) * 1997-06-23 2003-08-01 Liechti Ag Metodo para la compresion de grabaciones de ruido ambiental, metodo para la deteccion de los elementos de programa de las mismas, dispositivo y programa de ordenador para su aplicacion.
US6347081B1 (en) * 1997-08-25 2002-02-12 Telefonaktiebolaget L M Ericsson (Publ) Method for power reduced transmission of speech inactivity
US6023674A (en) * 1998-01-23 2000-02-08 Telefonaktiebolaget L M Ericsson Non-parametric voice activity detection
US6122611A (en) * 1998-05-11 2000-09-19 Conexant Systems, Inc. Adding noise during LPC coded voice activity periods to improve the quality of coded speech coexisting with background noise
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6192335B1 (en) 1998-09-01 2001-02-20 Telefonaktieboiaget Lm Ericsson (Publ) Adaptive combining of multi-mode coding for voiced speech and noise-like signals
US6256606B1 (en) 1998-11-30 2001-07-03 Conexant Systems, Inc. Silence description coding for multi-rate speech codecs
US6691084B2 (en) * 1998-12-21 2004-02-10 Qualcomm Incorporated Multiple mode variable rate speech coding
US6519260B1 (en) 1999-03-17 2003-02-11 Telefonaktiebolaget Lm Ericsson (Publ) Reduced delay priority for comfort noise
US7423983B1 (en) * 1999-09-20 2008-09-09 Broadcom Corporation Voice and data exchange over a packet based network
US6381568B1 (en) 1999-05-05 2002-04-30 The United States Of America As Represented By The National Security Agency Method of transmitting speech using discontinuous transmission and comfort noise
GB2350532B (en) * 1999-05-28 2001-08-08 Mitel Corp Method to generate telephone comfort noise during silence in a packetized voice communication system
JP3451998B2 (ja) * 1999-05-31 2003-09-29 日本電気株式会社 無音声符号化を含む音声符号化・復号装置、復号化方法及びプログラムを記録した記録媒体
US7161931B1 (en) * 1999-09-20 2007-01-09 Broadcom Corporation Voice and data exchange over a packet based network
FR1094446T (fr) * 1999-10-18 2007-01-05 Lucent Technologies Inc Enregistrement de la parole avec compression du silence et génération de bruit de confort pour appareil de communication digitale
GB2356538A (en) * 1999-11-22 2001-05-23 Mitel Corp Comfort noise generation for open discontinuous transmission systems
US6615170B1 (en) * 2000-03-07 2003-09-02 International Business Machines Corporation Model-based voice activity detection system and method using a log-likelihood ratio and pitch
GB0007655D0 (en) * 2000-03-29 2000-05-17 Simoco Int Ltd Digital transmission
EP1279164A1 (de) * 2000-04-28 2003-01-29 Deutsche Telekom AG Verfahren zur berechnung einer sprachaktivitätsentscheidung (voice activity detector)
US6898195B1 (en) * 2000-05-09 2005-05-24 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for sustaining conversational services in a packet switched radio access network
US7246057B1 (en) * 2000-05-31 2007-07-17 Telefonaktiebolaget Lm Ericsson (Publ) System for handling variations in the reception of a speech signal consisting of packets
EP1179819A1 (en) * 2000-08-11 2002-02-13 Lucent Technologies Inc. Efficient comfort noise transmission
US6807525B1 (en) * 2000-10-31 2004-10-19 Telogy Networks, Inc. SID frame detection with human auditory perception compensation
EP1204093A1 (en) * 2000-11-02 2002-05-08 Lucent Technologies Inc. Discontinuous comfort noise transmission
US6662155B2 (en) * 2000-11-27 2003-12-09 Nokia Corporation Method and system for comfort noise generation in speech communication
GB2370206A (en) * 2000-12-15 2002-06-19 Ericsson Telefon Ab L M Storing a speech signal, e.g. in a mobile telephone
US6631139B2 (en) * 2001-01-31 2003-10-07 Qualcomm Incorporated Method and apparatus for interoperability between voice transmission systems during speech inactivity
US20030120484A1 (en) * 2001-06-12 2003-06-26 David Wong Method and system for generating colored comfort noise in the absence of silence insertion description packets
US20030212550A1 (en) * 2002-05-10 2003-11-13 Ubale Anil W. Method, apparatus, and system for improving speech quality of voice-over-packets (VOP) systems
US7746797B2 (en) * 2002-10-09 2010-06-29 Nortel Networks Limited Non-intrusive monitoring of quality levels for voice communications over a packet-based network
EP1414024A1 (en) * 2002-10-21 2004-04-28 Alcatel Realistic comfort noise for voice calls over packet networks
US7406096B2 (en) * 2002-12-06 2008-07-29 Qualcomm Incorporated Tandem-free intersystem voice communication
ATE517538T1 (de) * 2002-12-16 2011-08-15 Research In Motion Ltd Verfahren und vorrichtung zur senkung des energieverbrauches in einem cdma- kommunikationsgerät
US7436786B2 (en) * 2003-12-09 2008-10-14 International Business Machines Corporation Telecommunications system for minimizing the effect of white noise data packets for the generation of required white noise on transmission channel utilization
US20060149536A1 (en) * 2004-12-30 2006-07-06 Dunling Li SID frame update using SID prediction error
CA2609945C (en) * 2005-06-18 2012-12-04 Nokia Corporation System and method for adaptive transmission of comfort noise parameters during discontinuous speech transmission
KR100785471B1 (ko) 2006-01-06 2007-12-13 와이더댄 주식회사 통신망을 통해 가입자 단말기로 전송되는 오디오 신호의출력 품질 개선을 위한 오디오 신호의 처리 방법 및 상기방법을 채용한 오디오 신호 처리 장치
CN101087319B (zh) * 2006-06-05 2012-01-04 华为技术有限公司 一种发送和接收背景噪声的方法和装置及静音压缩系统
US20080059161A1 (en) * 2006-09-06 2008-03-06 Microsoft Corporation Adaptive Comfort Noise Generation
CN101303855B (zh) * 2007-05-11 2011-06-22 华为技术有限公司 一种舒适噪声参数产生方法和装置
CN101483042B (zh) 2008-03-20 2011-03-30 华为技术有限公司 一种噪声生成方法以及噪声生成装置
CN101309487B (zh) * 2008-07-15 2011-05-11 华为技术有限公司 一种语音帧的处理方法、系统和基站
EP2347619B1 (en) * 2008-10-16 2013-04-03 Telefonaktiebolaget L M Ericsson (PUBL) Apparatus and method of controlling sporadic transmissions of silence insertion descriptor (sid)
US20100260273A1 (en) * 2009-04-13 2010-10-14 Dsp Group Limited Method and apparatus for smooth convergence during audio discontinuous transmission
CN102034476B (zh) * 2009-09-30 2013-09-11 华为技术有限公司 语音帧错误检测的方法及装置
CN102971788B (zh) * 2010-04-13 2017-05-31 弗劳恩霍夫应用研究促进协会 音频信号的样本精确表示的方法及编码器和解码器
US20110273213A1 (en) * 2010-05-06 2011-11-10 Qualcomm Incorporated Method and apparatus to dynamically adjust a clock rate in a mobile device
CN106169297B (zh) 2013-05-30 2019-04-19 华为技术有限公司 信号编码方法及设备
US9185506B1 (en) * 2013-12-16 2015-11-10 Amazon Technologies, Inc. Comfort noise generation based on noise estimation
EP2980801A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for estimating noise in an audio signal, noise estimator, audio encoder, audio decoder, and system for transmitting audio signals
GB2532041B (en) * 2014-11-06 2019-05-29 Imagination Tech Ltd Comfort noise generation
US10978096B2 (en) * 2017-04-25 2021-04-13 Qualcomm Incorporated Optimized uplink operation for voice over long-term evolution (VoLte) and voice over new radio (VoNR) listen or silent periods

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276765A (en) * 1988-03-11 1994-01-04 British Telecommunications Public Limited Company Voice activity detection
BR8907308A (pt) * 1988-03-11 1991-03-19 British Telecomm Aparelho detector da atividade vocal,processo para a deteccao da atividade vocal,aparelho para a codificacao de sinais da fala e aparelho telefonico movel
JPH0236628A (ja) * 1988-07-27 1990-02-06 Toshiba Corp 音声信号の送信方式及び送受信方式
US5537509A (en) * 1990-12-06 1996-07-16 Hughes Electronics Comfort noise generation for digital communication systems
JPH04312048A (ja) * 1991-04-11 1992-11-04 Matsushita Electric Ind Co Ltd 音声パケットシステム
JP2518765B2 (ja) * 1991-05-31 1996-07-31 国際電気株式会社 音声符号化通信方式及びその装置
JP2897551B2 (ja) * 1992-10-12 1999-05-31 日本電気株式会社 音声復号化装置
JPH06282297A (ja) * 1993-03-26 1994-10-07 Idou Tsushin Syst Kaihatsu Kk 音声符号化方式
JPH0750631A (ja) * 1993-08-05 1995-02-21 Toshiba Corp 擬似背景雑音発生機能を備えたディジタル無線通信装置
SE501981C2 (sv) * 1993-11-02 1995-07-03 Ericsson Telefon Ab L M Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler
JP3182032B2 (ja) * 1993-12-10 2001-07-03 株式会社日立国際電気 音声符号化通信方式及びその装置
JPH08254997A (ja) * 1995-03-16 1996-10-01 Fujitsu Ltd 音声符号化・復号化方法

Also Published As

Publication number Publication date
FR2739995B1 (fr) 1997-12-12
DE69631318T2 (de) 2004-11-18
DE69637612D1 (de) 2008-09-04
JPH09179590A (ja) 1997-07-11
KR100357254B1 (ko) 2003-01-10
DE69631318D1 (de) 2004-02-19
EP0768770B1 (fr) 2004-01-14
FR2739995A1 (fr) 1997-04-18
CN1104710C (zh) 2003-04-02
EP1372289A2 (fr) 2003-12-17
EP1372289B1 (fr) 2008-07-23
HK1062506A1 (en) 2004-11-05
EP0768770A1 (fr) 1997-04-16
EP1372289A3 (fr) 2006-05-17
EP1320087B1 (fr) 2008-06-11
EP1320087A2 (fr) 2003-06-18
JP3781495B2 (ja) 2006-05-31
DE69637565D1 (de) 2008-07-24
EP1320087A3 (fr) 2006-05-17
US5812965A (en) 1998-09-22
CN1155801A (zh) 1997-07-30
JP2004177978A (ja) 2004-06-24
JP4422500B2 (ja) 2010-02-24

Similar Documents

Publication Publication Date Title
HK1057939A1 (en) Synthesis of an excitation signal for use in a comfort noise generator
HK1008599A1 (en) Waveform speech synthesis
IL143517A0 (en) Novel synthesis
HK1017067A1 (en) Ultrasonic flowmeter and ultrasonic generator/detector
AP9701069A0 (en) New cryptophycins from synthesis
HK1010417A1 (en) Acoustic signal producing apparatus
EP0749005A3 (de) Schallwandler
EP0858721A4 (en) ACOUSTIC CONVERTER
HK1120494A1 (en) Novel compounds and methods for synthesis and therapy
GB2307608B (en) Signal generator
EP0838678A4 (en) MEASURING TOOL
GB9505003D0 (en) "Acoustic transducer"
GB2303527B (en) Generating binaural sound
GB9517811D0 (en) Transducer cores
GB9509420D0 (en) Slurry density measurement
SG38918A1 (en) Musical tone signal synthesizer
IL118238A0 (en) Synthesis of benzoquinolinones
ZA952510B (en) Tone signal generator having a sound effect function
GB2301728B (en) Electromagnetic acoustic transducers
PL325195A1 (en) Ultrasonic transducer
GB9513950D0 (en) Sound synthesis
HK1013691A1 (en) Sound generator in particular for time piece
GB9510618D0 (en) Musical instrument
GB9509796D0 (en) Sound generating arrangements
PL309373A1 (en) Shiftable signal generator

Legal Events

Date Code Title Description
PE Patent expired

Effective date: 20161009