DE69730473D1 - System zur Kodierung und Übertragung von Sprachsignalen - Google Patents

System zur Kodierung und Übertragung von Sprachsignalen

Info

Publication number
DE69730473D1
DE69730473D1 DE69730473T DE69730473T DE69730473D1 DE 69730473 D1 DE69730473 D1 DE 69730473D1 DE 69730473 T DE69730473 T DE 69730473T DE 69730473 T DE69730473 T DE 69730473T DE 69730473 D1 DE69730473 D1 DE 69730473D1
Authority
DE
Germany
Prior art keywords
coding
transmission
voice signals
voice
signals
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 - Fee Related
Application number
DE69730473T
Other languages
English (en)
Other versions
DE69730473T2 (de
Inventor
Hisashi Yajima
Noriaki Kawano
Yushi Naito
Shigeaki Suzuki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of DE69730473D1 publication Critical patent/DE69730473D1/de
Publication of DE69730473T2 publication Critical patent/DE69730473T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding

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)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69730473T 1996-03-29 1997-03-27 System zur Kodierung und Übertragung von Sprachsignalen Expired - Fee Related DE69730473T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP7776196 1996-03-29
JP7776196 1996-03-29
JP32892596 1996-12-09
JP32892596A JP3157116B2 (ja) 1996-03-29 1996-12-09 音声符号化伝送システム

Publications (2)

Publication Number Publication Date
DE69730473D1 true DE69730473D1 (de) 2004-10-07
DE69730473T2 DE69730473T2 (de) 2005-09-15

Family

ID=26418831

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69730473T Expired - Fee Related DE69730473T2 (de) 1996-03-29 1997-03-27 System zur Kodierung und Übertragung von Sprachsignalen

Country Status (5)

Country Link
US (1) US5873058A (de)
EP (2) EP0820052B1 (de)
JP (1) JP3157116B2 (de)
DE (1) DE69730473T2 (de)
IL (1) IL120523A (de)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6122271A (en) * 1997-07-07 2000-09-19 Motorola, Inc. Digital communication system with integral messaging and method therefor
US6041227A (en) * 1997-08-27 2000-03-21 Motorola, Inc. Method and apparatus for reducing transmission time required to communicate a silent portion of a voice message
JP3550013B2 (ja) * 1998-01-28 2004-08-04 Ｋｄｄｉ株式会社 Ａｔｍ音声帯域信号およびｉｓｄｎディジタル信号の転送方式
DE19826584A1 (de) * 1998-06-15 1999-12-16 Siemens Ag Verfahren zur Korrektur von Übertragungsfehlern bei einer Kommunikationsverbindung, vorzugsweise einer ATM-Kommunikationsverbindung
JP3039779B2 (ja) * 1998-06-19 2000-05-08 日本電気株式会社 音声中継装置及びその中継方法
US7006787B1 (en) * 2000-02-14 2006-02-28 Lucent Technologies Inc. Mobile to mobile digital wireless connection having enhanced voice quality
US6445696B1 (en) 2000-02-25 2002-09-03 Network Equipment Technologies, Inc. Efficient variable rate coding of voice over asynchronous transfer mode
JP3483513B2 (ja) * 2000-03-02 2004-01-06 沖電気工業株式会社 音声録音再生装置
US6584438B1 (en) * 2000-04-24 2003-06-24 Qualcomm Incorporated Frame erasure compensation method in a variable rate speech coder
US20020110152A1 (en) * 2001-02-14 2002-08-15 Silvain Schaffer Synchronizing encoder - decoder operation in a communication network
JP4108317B2 (ja) 2001-11-13 2008-06-25 日本電気株式会社 符号変換方法及び装置とプログラム並びに記憶媒体
AU2002253122A1 (en) * 2002-03-11 2003-09-22 Telefonaktiebolaget Lm Ericsson (Publ) Coding of data in a data package
JP4304360B2 (ja) 2002-05-22 2009-07-29 日本電気株式会社 音声符号化復号方式間の符号変換方法および装置とその記憶媒体
US20050071154A1 (en) * 2003-09-30 2005-03-31 Walter Etter Method and apparatus for estimating noise in speech signals
KR100885139B1 (ko) 2003-09-30 2009-02-23 닛본 덴끼 가부시끼가이샤 이종 통신망간 접속에 있어서의 부호화 데이터의 처리방법
FR2863797B1 (fr) * 2003-12-15 2006-02-24 Cit Alcatel Compression/decompression de couche deux pour la transmission mixte synchrone/asynchrone de trames de donnees au sein d'un reseau de communications
US7617109B2 (en) * 2004-07-01 2009-11-10 Dolby Laboratories Licensing Corporation Method for correcting metadata affecting the playback loudness and dynamic range of audio information
EP1775717B1 (de) * 2004-07-20 2013-09-11 Panasonic Corporation Sprachdecodierungseinrichtung und kompensationsrahmenerzeugungsverfahren
JP4419748B2 (ja) * 2004-08-12 2010-02-24 沖電気工業株式会社 消失補償装置、消失補償方法、および消失補償プログラム
US8102872B2 (en) * 2005-02-01 2012-01-24 Qualcomm Incorporated Method for discontinuous transmission and accurate reproduction of background noise information
US20060217972A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for modifying an encoded signal
US20060215683A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for voice quality enhancement
US20060217988A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for adaptive level control
US20060217970A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for noise reduction
US20060217983A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for injecting comfort noise in a communications system
JP2007288342A (ja) * 2006-04-13 2007-11-01 Nec Corp メディアストリーム中継装置および方法
EP2051243A4 (de) * 2006-07-27 2010-12-22 Nec Corp Audiodaten-dekodierungseinrichtung
JP5011913B2 (ja) * 2006-09-28 2012-08-29 沖電気工業株式会社 差分符号化信号復号装置
JP2008033233A (ja) * 2007-02-16 2008-02-14 Nec Corp 音声データ復号装置及び音声データ変換装置
CN101542593B (zh) * 2007-03-12 2013-04-17 富士通株式会社 语音波形内插装置及方法
JP5058738B2 (ja) * 2007-09-25 2012-10-24 キヤノン株式会社 ＩｒＤＡ制御装置及びＩｒＤＡ制御方法
US8509460B2 (en) 2008-02-04 2013-08-13 Nec Corporation Sound mixing apparatus and method and multipoint conference server
WO2010114344A2 (ko) * 2009-04-03 2010-10-07 (주)엘지전자 릴레이 시스템에서 다중 데이터 스트림 전송 방법 및 장치
US20100260273A1 (en) * 2009-04-13 2010-10-14 Dsp Group Limited Method and apparatus for smooth convergence during audio discontinuous transmission
CN102414745B (zh) * 2009-05-22 2014-07-30 松下电器产业株式会社 编码装置、解码装置及编码、解码方法
WO2012066525A1 (en) * 2010-11-18 2012-05-24 Dsp Group Ltd. Non-synchronized adpcm with discontinuous transmission
SG11201510353RA (en) * 2013-06-21 2016-01-28 Fraunhofer Ges Forschung Apparatus and method realizing a fading of an mdct spectrum to white noise prior to fdns application
CN114023341A (zh) * 2014-07-25 2022-02-08 弗朗霍弗应用研究促进协会 音响信号编码装置和解码装置以及编码方法和解码方法
JP6556473B2 (ja) * 2015-03-12 2019-08-07 株式会社東芝 送信装置、音声認識システム、送信方法、およびプログラム
US20230336594A1 (en) * 2022-04-15 2023-10-19 Google Llc Videoconferencing with Reduced Quality Interruptions Upon Participant Join
CN115695114B (zh) * 2022-11-02 2024-03-29 电子科技大学 基于k近邻算法的人工噪声消除方法

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2157143A5 (de) * 1971-10-19 1973-06-01 Queffeulou Jean Yves
US3832493A (en) * 1973-06-18 1974-08-27 Itt Digital speech detector
US3836719A (en) * 1973-07-02 1974-09-17 Itt Tasi assignment control arrangement
IL74965A (en) * 1985-04-17 1990-07-12 Israel Electronics Corp Combination tasi and adpcm apparatus
JPS61275900A (ja) * 1985-05-31 1986-12-05 富士通株式会社 音声情報圧縮方式
JPS63127300A (ja) * 1986-11-18 1988-05-31 株式会社リコー 音声無音圧縮方式
CA1335612C (en) * 1988-06-28 1995-05-16 Genichi Fujiwara Voice frequency communication apparatus
US5148429A (en) * 1988-10-27 1992-09-15 Kabushiki Kaisha Toshiba Voice data transmission system and method
JPH02181522A (ja) * 1989-01-06 1990-07-16 Mitsubishi Electric Corp 機能明示型キーボードデータ入力装置
JPH02288520A (ja) * 1989-04-28 1990-11-28 Hitachi Ltd 背景音再生機能付き音声符号復号方式
JPH03101457A (ja) * 1989-09-14 1991-04-26 Nec Corp 音声パケット転送方法およびその装置
EP0464839B1 (de) * 1990-07-05 2000-09-27 Fujitsu Limited Digitalmultiplex-Übertragungssystem
JPH04127747A (ja) * 1990-09-19 1992-04-28 Toshiba Corp 可変レート符号化方式
GB2252702A (en) * 1991-01-15 1992-08-12 British Telecomm Channel coding for speech
JP2680198B2 (ja) * 1991-02-08 1997-11-19 三菱電機株式会社 音声ディジタル１リンク接続方式
JP2776050B2 (ja) * 1991-02-26 1998-07-16 日本電気株式会社 音声符号化方式
JPH04284742A (ja) * 1991-03-14 1992-10-09 Seiko Epson Corp 通信装置
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
JPH04357735A (ja) * 1991-06-03 1992-12-10 Mitsubishi Electric Corp 音声パケット通信装置
JPH04362830A (ja) * 1991-06-10 1992-12-15 Oki Electric Ind Co Ltd 音声パケット通信方式
JP3325277B2 (ja) * 1991-07-11 2002-09-17 株式会社東芝 音声符号化装置
JPH0573085A (ja) * 1991-09-12 1993-03-26 Fujitsu Ltd 無音検出装置および符号化装置
JP3121094B2 (ja) * 1992-02-27 2000-12-25 富士通株式会社 音声符号化器
JP3218679B2 (ja) * 1992-04-15 2001-10-15 ソニー株式会社 高能率符号化方法
JP2745961B2 (ja) * 1992-04-23 1998-04-28 日本電気株式会社 移動体通信機における音声信号符号化復号化装置
JPH05316055A (ja) * 1992-05-14 1993-11-26 Matsushita Electric Ind Co Ltd 音声圧縮復号化装置
US5734789A (en) * 1992-06-01 1998-03-31 Hughes Electronics Voiced, unvoiced or noise modes in a CELP vocoder
CA2095882A1 (en) * 1992-06-04 1993-12-05 David O. Anderton Voice messaging synchronization
JPH06216860A (ja) * 1993-01-19 1994-08-05 Casio Comput Co Ltd 音声通信装置
AU665716B2 (en) * 1993-07-05 1996-01-11 Mitsubishi Denki Kabushiki Kaisha A transmitter for encoding error correction codes and a receiver for decoding error correction codes on a transmission frame
JP3227929B2 (ja) * 1993-08-31 2001-11-12 ソニー株式会社 音声符号化装置およびその符号化信号の復号化装置
JPH0784597A (ja) * 1993-09-20 1995-03-31 Fujitsu Ltd 音声符号化装置および音声復号化装置
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
JP2616549B2 (ja) * 1993-12-10 1997-06-04 日本電気株式会社 音声復号装置
JP2979943B2 (ja) * 1993-12-14 1999-11-22 日本電気株式会社 音声符号化装置
US5457684A (en) * 1993-12-21 1995-10-10 At&T Ipm Corp. Delay-less signal processing arrangement for use in an ATM network
JP2697642B2 (ja) * 1994-11-24 1998-01-14 日本電気株式会社 Ａｔｍ音声符号化装置

Also Published As

Publication number Publication date
IL120523A0 (en) 1997-07-13
US5873058A (en) 1999-02-16
EP0820052B1 (de) 2004-09-01
EP0820052A3 (de) 2000-04-19
IL120523A (en) 2000-01-31
EP0820052A2 (de) 1998-01-21
EP1453231A1 (de) 2004-09-01
DE69730473T2 (de) 2005-09-15
JP3157116B2 (ja) 2001-04-16
JPH09321783A (ja) 1997-12-12

Similar Documents

Publication Publication Date Title
DE69730473D1 (de) System zur Kodierung und Übertragung von Sprachsignalen
DE69423693D1 (de) System zur angepassten Reduktion von Geräuschen bei Sprachsignalen
DE69611274T2 (de) System zur Schätzung und Übermittlung von Verkehrsinformationen
DE69625190D1 (de) Telekommunikationssystem und -verfahren zur übertragung von mikrozellen
DE69901273D1 (de) Verfahren zur Codierung und Quantisierung von Audiosignalen
DE69732874D1 (de) Kodierung, Speicherung und Übertragung von digitalen Signalen
DE69722187T2 (de) Gleichzeitige übertragung von audio- und zusatzsignalen mit hilfe von wahrnehmungsgebundener kodierung
DE69739418D1 (de) System zur Herstimulussteuerung
DE69720302T2 (de) Übertragung und/oder Empfang von Signalen
DE69531927D1 (de) System zur Verteilung und Benutzung von Digitalwerken
DE69734270D1 (de) Übertragungssystem und -verfahren
DE69915400D1 (de) Vorrichtung zur Kodierung und Dekodierung von Audiosignalen
DE69923724D1 (de) Vorrichtung zur Codierung von Sprach- und Musiksignalen sowie Vorrichtung zur Decodierung
DE69622611D1 (de) Kodierung und Dekodierung von Bildsignalen
DE69711218T2 (de) System und verfahren zur nichtsequentiellen übertragung von steuersignalen innerhalb einer sprachübertragung
DE69532227D1 (de) Signalsendeverfahren und kommunikationssystem
DE69731818D1 (de) Verfahren und system zur vermittlung von digitalen zeitmultiplexsignalen unterschiedlicher übertragungsraten
DE69711114T2 (de) System zur Übermittlung von Audiosignalen in einem Notevakuierungsnetz
DE59410342D1 (de) Verfahren und Schaltungsanordnung zur Übertragung von Sprachsignalen
EE03543B1 (et) Kõneühenduseks ja signaliseerimiseks kasutatav valjuhääldi
DE69522872T2 (de) System zur Ton Konvertierung und Speicherung über Netzwerk
DE69125251D1 (de) System zur Übertragung und zum Empfangen von kodierten Fernsehsignalen
DE19681138T1 (de) Sprachsignalübertragungsverfahren und dieses verwendendes Vermittlungssystem
FI963136A (fi) Signalointimenetelmä ja digitaalinen radiojärjestelmä
DE69627626D1 (de) Verfahren und Schaltungen zur Umwandlung von Multiplexsignalen

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee