SE9603332D0 - Metod och anordning i ett telekommunikationssystem - Google Patents

Metod och anordning i ett telekommunikationssystem

Info

Publication number
SE9603332D0
SE9603332D0 SE9603332A SE9603332A SE9603332D0 SE 9603332 D0 SE9603332 D0 SE 9603332D0 SE 9603332 A SE9603332 A SE 9603332A SE 9603332 A SE9603332 A SE 9603332A SE 9603332 D0 SE9603332 D0 SE 9603332D0
Authority
SE
Sweden
Prior art keywords
frames
background noise
speech
received
describing
Prior art date
Application number
SE9603332A
Other languages
English (en)
Other versions
SE9603332L (sv
SE507370C2 (sv
Inventor
Ingemar Johansson
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 SE9603332A priority Critical patent/SE507370C2/sv
Publication of SE9603332D0 publication Critical patent/SE9603332D0/sv
Priority to AU41423/97A priority patent/AU4142397A/en
Priority to PCT/SE1997/001491 priority patent/WO1998011536A1/en
Priority to JP51355198A priority patent/JP2001506764A/ja
Priority to US08/928,523 priority patent/US5978761A/en
Publication of SE9603332L publication Critical patent/SE9603332L/sv
Publication of SE507370C2 publication Critical patent/SE507370C2/sv

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
SE9603332A 1996-09-13 1996-09-13 Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare SE507370C2 (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9603332A SE507370C2 (sv) 1996-09-13 1996-09-13 Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare
AU41423/97A AU4142397A (en) 1996-09-13 1997-09-05 Method and arrangement in a telecommunication system
PCT/SE1997/001491 WO1998011536A1 (en) 1996-09-13 1997-09-05 Method and arrangement in a telecommunication system
JP51355198A JP2001506764A (ja) 1996-09-13 1997-09-05 遠隔通信システムにおける方法および配置
US08/928,523 US5978761A (en) 1996-09-13 1997-09-12 Method and arrangement for producing comfort noise in a linear predictive speech decoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9603332A SE507370C2 (sv) 1996-09-13 1996-09-13 Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare

Publications (3)

Publication Number Publication Date
SE9603332D0 true SE9603332D0 (sv) 1996-09-13
SE9603332L SE9603332L (sv) 1998-03-14
SE507370C2 SE507370C2 (sv) 1998-05-18

Family

ID=20403869

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9603332A SE507370C2 (sv) 1996-09-13 1996-09-13 Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare

Country Status (5)

Country Link
US (1) US5978761A (sv)
JP (1) JP2001506764A (sv)
AU (1) AU4142397A (sv)
SE (1) SE507370C2 (sv)
WO (1) WO1998011536A1 (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6240383B1 (en) * 1997-07-25 2001-05-29 Nec Corporation Celp speech coding and decoding system for creating comfort noise dependent on the spectral envelope of the speech signal
US7072832B1 (en) 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6256606B1 (en) * 1998-11-30 2001-07-03 Conexant Systems, Inc. Silence description coding for multi-rate speech codecs
KR100317810B1 (ko) * 1998-12-31 2001-12-22 서평원 디지털 계위 구조의 리프레머 및 프레임 손실 검사 장치
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
JP3670217B2 (ja) * 2000-09-06 2005-07-13 国立大学法人名古屋大学 雑音符号化装置、雑音復号装置、雑音符号化方法および雑音復号方法
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
GB0129369D0 (en) * 2001-12-07 2002-01-30 Filtrona United Kingdom Ltd Method and apparatus for marking articles
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
PT2186090T (pt) 2007-08-27 2017-03-07 ERICSSON TELEFON AB L M (publ) Detetor de transitórios e método para suportar codificação de um sinal de áudio
CN100555414C (zh) * 2007-11-02 2009-10-28 华为技术有限公司 一种dtx判决方法和装置
TR201909562T4 (tr) * 2013-02-22 2019-07-22 Ericsson Telefon Ab L M Ses kodlamada DTX kalıntısı için usuller ve aygıtlar.

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537509A (en) * 1990-12-06 1996-07-16 Hughes Electronics Comfort noise generation for digital communication systems
GB2256351B (en) * 1991-05-25 1995-07-05 Motorola Inc Enhancement of echo return loss
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
AU671952B2 (en) * 1991-06-11 1996-09-19 Qualcomm Incorporated Variable rate vocoder
JP3167385B2 (ja) * 1991-10-28 2001-05-21 日本電信電話株式会社 音声信号伝送方法
JPH07129195A (ja) * 1993-11-05 1995-05-19 Nec Corp 音声復号化装置
WO1995015550A1 (en) * 1993-11-30 1995-06-08 At & T Corp. Transmitted noise reduction in communications systems
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
US5657422A (en) * 1994-01-28 1997-08-12 Lucent Technologies Inc. Voice activity detection driven noise remediator
FI100932B (sv) * 1995-04-12 1998-03-13 Nokia Telecommunications Oy Överföring av DTMF-signaler i ett radiotelefonsystem
FI105001B (sv) * 1995-06-30 2000-05-15 Nokia Mobile Phones Ltd Förfarande för utredning av väntetiden i en talavkodare i diskontinuerlig sändning och en talavkodare samt en sändare-mottagare
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
US5689615A (en) * 1996-01-22 1997-11-18 Rockwell International Corporation Usage of voice activity detection for efficient coding of speech
US5794199A (en) * 1996-01-29 1998-08-11 Texas Instruments Incorporated Method and system for improved discontinuous speech transmission
US5881373A (en) * 1996-08-28 1999-03-09 Telefonaktiebolaget Lm Ericsson Muting a microphone in radiocommunication systems

Also Published As

Publication number Publication date
SE9603332L (sv) 1998-03-14
WO1998011536A1 (en) 1998-03-19
AU4142397A (en) 1998-04-02
US5978761A (en) 1999-11-02
JP2001506764A (ja) 2001-05-22
SE507370C2 (sv) 1998-05-18

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