[go: up one dir, main page]

SE9603332L - Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare - Google Patents

Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare

Info

Publication number
SE9603332L
SE9603332L SE9603332A SE9603332A SE9603332L SE 9603332 L SE9603332 L SE 9603332L SE 9603332 A SE9603332 A SE 9603332A SE 9603332 A SE9603332 A SE 9603332A SE 9603332 L SE9603332 L SE 9603332L
Authority
SE
Sweden
Prior art keywords
frames
background noise
speech
received
describing
Prior art date
Application number
SE9603332A
Other languages
English (en)
Other versions
SE507370C2 (sv
SE9603332D0 (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 PCT/SE1997/001491 priority patent/WO1998011536A1/en
Priority to AU41423/97A priority patent/AU4142397A/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
PCT/SE1997/001491 WO1998011536A1 (en) 1996-09-13 1997-09-05 Method and arrangement in a telecommunication system
AU41423/97A AU4142397A (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 SE9603332D0 (sv) 1996-09-13
SE9603332L true 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
US9495971B2 (en) 2007-08-27 2016-11-15 Telefonaktiebolaget Lm Ericsson (Publ) Transient detector and method for supporting encoding of an audio signal
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
JP3432822B2 (ja) * 1991-06-11 2003-08-04 クゥアルコム・インコーポレイテッド 可変速度ボコーダ
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
CN1129486A (zh) * 1993-11-30 1996-08-21 美国电报电话公司 通信系统中降低传输噪声的方法
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
JP2001506764A (ja) 2001-05-22
WO1998011536A1 (en) 1998-03-19
AU4142397A (en) 1998-04-02
SE507370C2 (sv) 1998-05-18
SE9603332D0 (sv) 1996-09-13
US5978761A (en) 1999-11-02

Similar Documents

Publication Publication Date Title
KR100357254B1 (ko) 음성수치 전송시스템내의 쾌적잡음 생성방법및 장치
EP1466320B1 (en) Signal coding
SE9603332L (sv) Metod och anordning för att alstra komfortbrus i linjärprediktiv talavkodare
DE69521254D1 (de) Verfahren zur sprachkodierung
EP1686563A3 (en) Method and apparatus for speech decoding
CN1133151C (zh) 纠正传输差错的声频信号解码方法
NO981532L (no) FremgangsmÕte og innretning for koding av lydsignaler
EP0770990A3 (en) Speech encoding method and apparatus and speech decoding method and apparatus
CA2335005A1 (en) Method and apparatus for performing packet loss or frame erasure concealment
SE9803164L (sv) Förfarande och anordning för celp-kodning/avkodning
MY129887A (en) Method and apparatus for performing reduced rate variable rate vocoding
KR970004877A (ko) 화상신호의 부호화 장치 및 방법과, 복호화 장치 및 방법
WO1999018565A3 (en) Speech coding
FR2849727B1 (fr) Procede de codage et de decodage audio a debit variable
MY116180A (en) Method for decoding video data corrupted by channel noise
SE9403386L (sv) Sätt och anordning vid radiokommunikationssystem
ATE218260T1 (de) Vorrichtung und verfahren zur videosignalkodierung
CA2324898A1 (en) Speech signal decoding method and apparatus, speech signal encoding/decoding method and apparatus, and program product therefor
JP3396480B2 (ja) 多重モード音声コーダのためのエラー保護
EP1073039A3 (en) Speech decoder with gain processing
DE59700389D1 (de) Codierverfahren zur einbringung eines nicht hörbaren datensignals in ein audiosignal, decodierverfahren, codierer und decodierer
WO1998058467A3 (de) Quellengesteuerte kanaldecodierung durch verwendung der intra-rahmen-korrelation
CA2152513A1 (en) Excitation Signal Encoding Method and Device Capable of Encoding with High Quality
JP2001075600A (ja) 音声符号化装置および音声復号化装置
EP1083548A3 (en) Method for gain control of a CELP speech decoder

Legal Events

Date Code Title Description
NUG Patent has lapsed