DE69721349D1 - Sprachkodierung - Google Patents
SprachkodierungInfo
- Publication number
- DE69721349D1 DE69721349D1 DE69721349T DE69721349T DE69721349D1 DE 69721349 D1 DE69721349 D1 DE 69721349D1 DE 69721349 T DE69721349 T DE 69721349T DE 69721349 T DE69721349 T DE 69721349T DE 69721349 D1 DE69721349 D1 DE 69721349D1
- Authority
- DE
- Germany
- Prior art keywords
- speech coding
- speech
- coding
- 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
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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/593,206 US5794199A (en) | 1996-01-29 | 1996-01-29 | Method and system for improved discontinuous speech transmission |
US593206 | 1996-01-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69721349D1 true DE69721349D1 (de) | 2003-06-05 |
DE69721349T2 DE69721349T2 (de) | 2004-04-01 |
Family
ID=24373831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69721349T Expired - Lifetime DE69721349T2 (de) | 1996-01-29 | 1997-01-29 | Sprachkodierung |
Country Status (4)
Country | Link |
---|---|
US (3) | US5794199A (de) |
EP (1) | EP0786760B1 (de) |
JP (1) | JPH1097292A (de) |
DE (1) | DE69721349T2 (de) |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE505156C2 (sv) * | 1995-01-30 | 1997-07-07 | Ericsson Telefon Ab L M | Förfarande för bullerundertryckning genom spektral subtraktion |
FI99066C (fi) * | 1995-01-31 | 1997-09-25 | Nokia Mobile Phones Ltd | Tiedonsiirtomenetelmä |
US5794199A (en) * | 1996-01-29 | 1998-08-11 | Texas Instruments Incorporated | Method and system for improved discontinuous speech transmission |
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 |
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 |
TW376611B (en) * | 1998-05-26 | 1999-12-11 | Koninkl Philips Electronics Nv | Transmission system with improved speech encoder |
US6141639A (en) * | 1998-06-05 | 2000-10-31 | Conexant Systems, Inc. | Method and apparatus for coding of signals containing speech and background noise |
US6275798B1 (en) * | 1998-09-16 | 2001-08-14 | Telefonaktiebolaget L M Ericsson | Speech coding with improved background noise reproduction |
SE9803698L (sv) * | 1998-10-26 | 2000-04-27 | Ericsson Telefon Ab L M | Metoder och anordningar i ett telekommunikationssystem |
US7124079B1 (en) * | 1998-11-23 | 2006-10-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Speech coding with comfort noise variability feature for increased fidelity |
FI118359B (fi) * | 1999-01-18 | 2007-10-15 | Nokia Corp | Menetelmä puheentunnistuksessa ja puheentunnistuslaite ja langaton viestin |
US6226607B1 (en) * | 1999-02-08 | 2001-05-01 | Qualcomm Incorporated | Method and apparatus for eighth-rate random number generation for speech coders |
US6519260B1 (en) | 1999-03-17 | 2003-02-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Reduced delay priority for comfort noise |
GB9912577D0 (en) * | 1999-05-28 | 1999-07-28 | Mitel Corp | Method of detecting silence in a packetized voice stream |
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 |
CN1145928C (zh) * | 1999-06-07 | 2004-04-14 | 艾利森公司 | 用参数噪声模型统计量产生舒适噪声的方法及装置 |
US6782361B1 (en) * | 1999-06-18 | 2004-08-24 | Mcgill University | Method and apparatus for providing background acoustic noise during a discontinued/reduced rate transmission mode of a voice transmission system |
US6959274B1 (en) * | 1999-09-22 | 2005-10-25 | Mindspeed Technologies, Inc. | Fixed rate speech compression system and method |
GB2356538A (en) * | 1999-11-22 | 2001-05-23 | Mitel Corp | Comfort noise generation for open discontinuous transmission systems |
US6965865B2 (en) | 1999-12-30 | 2005-11-15 | Bank One Delaware N.A. | System and method for integrated customer management |
US6873604B1 (en) * | 2000-07-31 | 2005-03-29 | Cisco Technology, Inc. | Method and apparatus for transitioning comfort noise in an IP-based telephony system |
JP2002073072A (ja) * | 2000-08-31 | 2002-03-12 | Sony Corp | モデル適応装置およびモデル適応方法、記録媒体、並びにパターン認識装置 |
US6647053B1 (en) * | 2000-08-31 | 2003-11-11 | Ricochet Networks, Inc. | Method and system for channel masking in a communication network |
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 |
US7012901B2 (en) * | 2001-02-28 | 2006-03-14 | Cisco Systems, Inc. | Devices, software and methods for generating aggregate comfort noise in teleconferencing over VoIP networks |
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 |
US20030093270A1 (en) * | 2001-11-13 | 2003-05-15 | Domer Steven M. | Comfort noise including recorded noise |
KR100434723B1 (ko) * | 2001-12-24 | 2004-06-07 | 주식회사 케이티 | 음성 신호특성을 이용한 돌발잡음 제거장치 및 그 방법 |
US8751384B2 (en) | 2002-05-08 | 2014-06-10 | Metavante Corporation | Integrated bill presentment and payment system and method of operating the same |
FR2851352B1 (fr) * | 2003-02-18 | 2005-04-01 | France Telecom | Systeme de conversion d'un signal audio continu en un signal audiot traduit et synthetise |
US7243065B2 (en) * | 2003-04-08 | 2007-07-10 | Freescale Semiconductor, Inc | Low-complexity comfort noise generator |
US7313233B2 (en) * | 2003-06-10 | 2007-12-25 | Intel Corporation | Tone clamping and replacement |
US7536298B2 (en) * | 2004-03-15 | 2009-05-19 | Intel Corporation | Method of comfort noise generation for speech communication |
EP1805927A1 (de) | 2004-10-11 | 2007-07-11 | 2Wire, Inc. | Verminderung von periodischem impulsrauschen in einem dsl-system |
US9374257B2 (en) * | 2005-03-18 | 2016-06-21 | Broadcom Corporation | Methods and apparatuses of measuring impulse noise parameters in multi-carrier communication systems |
GB0703795D0 (en) * | 2007-02-27 | 2007-04-04 | Sepura Ltd | Speech encoding and decoding in communications systems |
EP2137722A4 (de) * | 2007-03-30 | 2014-06-25 | Savox Comm Oy Ab Ltd | Funkkommunikationsgerät |
CN101335003B (zh) * | 2007-09-28 | 2010-07-07 | 华为技术有限公司 | 噪声生成装置、及方法 |
US8605837B2 (en) | 2008-10-10 | 2013-12-10 | Broadcom Corporation | Adaptive frequency-domain reference noise canceller for multicarrier communications systems |
US8589153B2 (en) * | 2011-06-28 | 2013-11-19 | Microsoft Corporation | Adaptive conference comfort noise |
CN103137133B (zh) | 2011-11-29 | 2017-06-06 | 南京中兴软件有限责任公司 | 非激活音信号参数估计方法及舒适噪声产生方法及*** |
DK2823479T3 (en) * | 2012-09-11 | 2015-10-12 | Ericsson Telefon Ab L M | GENERATION OF COMFORT CLOTHING |
US9775110B2 (en) | 2014-05-30 | 2017-09-26 | Apple Inc. | Power save for volte during silence periods |
EP2980790A1 (de) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur Komfortgeräuscherzeugungs-Modusauswahl |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4771465A (en) * | 1986-09-11 | 1988-09-13 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital speech sinusoidal vocoder with transmission of only subset of harmonics |
US4797926A (en) * | 1986-09-11 | 1989-01-10 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital speech vocoder |
US4899385A (en) * | 1987-06-26 | 1990-02-06 | American Telephone And Telegraph Company | Code excited linear predictive vocoder |
US4910781A (en) * | 1987-06-26 | 1990-03-20 | At&T Bell Laboratories | Code excited linear predictive vocoder using virtual searching |
US5276765A (en) * | 1988-03-11 | 1994-01-04 | British Telecommunications Public Limited Company | Voice activity detection |
KR0161258B1 (ko) * | 1988-03-11 | 1999-03-20 | 프레드릭 제이 비스코 | 음성활동 검출 방법 및 장치 |
US5091945A (en) * | 1989-09-28 | 1992-02-25 | At&T Bell Laboratories | Source dependent channel coding with error protection |
US5537509A (en) * | 1990-12-06 | 1996-07-16 | Hughes Electronics | Comfort noise generation for digital communication systems |
US5680508A (en) * | 1991-05-03 | 1997-10-21 | Itt Corporation | Enhancement of speech coding in background noise for low-rate speech coder |
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 |
US5267317A (en) * | 1991-10-18 | 1993-11-30 | At&T Bell Laboratories | Method and apparatus for smoothing pitch-cycle waveforms |
US5630016A (en) * | 1992-05-28 | 1997-05-13 | Hughes Electronics | Comfort noise generation for digital communication systems |
US5495555A (en) * | 1992-06-01 | 1996-02-27 | Hughes Aircraft Company | High quality low bit rate celp-based speech codec |
JP2897551B2 (ja) * | 1992-10-12 | 1999-05-31 | 日本電気株式会社 | 音声復号化装置 |
JPH08506434A (ja) * | 1993-11-30 | 1996-07-09 | エイ・ティ・アンド・ティ・コーポレーション | 通信システムにおける伝送ノイズ低減 |
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 |
KR970005131B1 (ko) * | 1994-01-18 | 1997-04-12 | 대우전자 주식회사 | 인간의 청각특성에 적응적인 디지탈 오디오 부호화장치 |
US5742734A (en) * | 1994-08-10 | 1998-04-21 | Qualcomm Incorporated | Encoding rate selection in a variable rate vocoder |
US5794199A (en) * | 1996-01-29 | 1998-08-11 | Texas Instruments Incorporated | Method and system for improved discontinuous speech transmission |
-
1996
- 1996-01-29 US US08/593,206 patent/US5794199A/en not_active Expired - Lifetime
-
1997
- 1997-01-29 DE DE69721349T patent/DE69721349T2/de not_active Expired - Lifetime
- 1997-01-29 EP EP97101311A patent/EP0786760B1/de not_active Expired - Lifetime
- 1997-01-29 JP JP9015271A patent/JPH1097292A/ja active Pending
- 1997-07-21 US US08/897,852 patent/US5978760A/en not_active Expired - Lifetime
-
1998
- 1998-01-07 US US09/004,017 patent/US6101466A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69721349T2 (de) | 2004-04-01 |
JPH1097292A (ja) | 1998-04-14 |
US5978760A (en) | 1999-11-02 |
US6101466A (en) | 2000-08-08 |
EP0786760A2 (de) | 1997-07-30 |
US5794199A (en) | 1998-08-11 |
EP0786760B1 (de) | 2003-05-02 |
EP0786760A3 (de) | 1998-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |