DE69028525D1 - Verfahren und Einrichtung zur Rekonstruktion von nicht quantisierten, mittels adaptiver Transformation umgewandelten Sprachsignalen. - Google Patents

Verfahren und Einrichtung zur Rekonstruktion von nicht quantisierten, mittels adaptiver Transformation umgewandelten Sprachsignalen.

Info

Publication number
DE69028525D1
DE69028525D1 DE69028525T DE69028525T DE69028525D1 DE 69028525 D1 DE69028525 D1 DE 69028525D1 DE 69028525 T DE69028525 T DE 69028525T DE 69028525 T DE69028525 T DE 69028525T DE 69028525 D1 DE69028525 D1 DE 69028525D1
Authority
DE
Germany
Prior art keywords
transform coefficients
reconstruction
speech signals
signals converted
spectral envelope
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
Application number
DE69028525T
Other languages
English (en)
Inventor
Harprit Chhatwal
Philip Wilson
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.)
Cirrus Logic Inc
Original Assignee
Pacific Communication Sciences Inc
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 Pacific Communication Sciences Inc filed Critical Pacific Communication Sciences Inc
Application granted granted Critical
Publication of DE69028525D1 publication Critical patent/DE69028525D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—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 spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/002—Dynamic bit allocation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/24—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 the cepstrum
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
DE69028525T 1989-04-18 1990-04-09 Verfahren und Einrichtung zur Rekonstruktion von nicht quantisierten, mittels adaptiver Transformation umgewandelten Sprachsignalen. Expired - Lifetime DE69028525D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/339,809 US5042069A (en) 1989-04-18 1989-04-18 Methods and apparatus for reconstructing non-quantized adaptively transformed voice signals
PCT/US1990/001905 WO1990013111A1 (en) 1989-04-18 1990-04-09 Methods and apparatus for reconstructing non-quantized adaptively transformed voice signals

Publications (1)

Publication Number Publication Date
DE69028525D1 true DE69028525D1 (de) 1996-10-17

Family

ID=23330700

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69033651T Expired - Lifetime DE69033651D1 (de) 1989-04-18 1990-04-09 Verfahren und Vorrichtung mit Bitzuordnung zur Quantisierung und Dequantizierung von transformierten Sprachsignalen.
DE69028525T Expired - Lifetime DE69028525D1 (de) 1989-04-18 1990-04-09 Verfahren und Einrichtung zur Rekonstruktion von nicht quantisierten, mittels adaptiver Transformation umgewandelten Sprachsignalen.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69033651T Expired - Lifetime DE69033651D1 (de) 1989-04-18 1990-04-09 Verfahren und Vorrichtung mit Bitzuordnung zur Quantisierung und Dequantizierung von transformierten Sprachsignalen.

Country Status (7)

Country Link
US (1) US5042069A (de)
EP (2) EP0470975B1 (de)
JP (1) JPH04506574A (de)
AT (2) ATE142814T1 (de)
AU (1) AU5436590A (de)
DE (2) DE69033651D1 (de)
WO (1) WO1990013111A1 (de)

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DE3902948A1 (de) * 1989-02-01 1990-08-09 Telefunken Fernseh & Rundfunk Verfahren zur uebertragung eines signals
US5434948A (en) * 1989-06-15 1995-07-18 British Telecommunications Public Limited Company Polyphonic coding
JP2844695B2 (ja) * 1989-07-19 1999-01-06 ソニー株式会社 信号符号化装置
DE4020656A1 (de) * 1990-06-29 1992-01-02 Thomson Brandt Gmbh Verfahren zur uebertragung eines signals
US5235671A (en) * 1990-10-15 1993-08-10 Gte Laboratories Incorporated Dynamic bit allocation subband excited transform coding method and apparatus
US5588089A (en) * 1990-10-23 1996-12-24 Koninklijke Ptt Nederland N.V. Bark amplitude component coder for a sampled analog signal and decoder for the coded signal
US5687281A (en) * 1990-10-23 1997-11-11 Koninklijke Ptt Nederland N.V. Bark amplitude component coder for a sampled analog signal and decoder for the coded signal
US5537509A (en) * 1990-12-06 1996-07-16 Hughes Electronics Comfort noise generation for digital communication systems
US5317672A (en) * 1991-03-05 1994-05-31 Picturetel Corporation Variable bit rate speech encoder
JP3130934B2 (ja) * 1991-03-05 2001-01-31 ピクチュアテル コーポレイション 可変ビットレート音声エンコーダ
DE69232251T2 (de) * 1991-08-02 2002-07-18 Sony Corp Digitaler Kodierer mit dynamischer Quantisierungsbitverteilung
DE69232256T2 (de) * 1991-09-27 2002-08-14 Koninkl Philips Electronics Nv Anordnung zum Liefern von Pulskodemodulationswerten in einem Fernsprechapparat
US5630016A (en) * 1992-05-28 1997-05-13 Hughes Electronics Comfort noise generation for digital communication systems
US5457783A (en) * 1992-08-07 1995-10-10 Pacific Communication Sciences, Inc. Adaptive speech coder having code excited linear prediction
US5517511A (en) * 1992-11-30 1996-05-14 Digital Voice Systems, Inc. Digital transmission of acoustic signals over a noisy communication channel
US5664057A (en) * 1993-07-07 1997-09-02 Picturetel Corporation Fixed bit rate speech encoder/decoder
JPH09503630A (ja) * 1993-07-07 1997-04-08 ピクチャーテル コーポレイション 固定ビットレートのスピーチエンコーダ／デコーダ
US5463424A (en) * 1993-08-03 1995-10-31 Dolby Laboratories Licensing Corporation Multi-channel transmitter/receiver system providing matrix-decoding compatible signals
US5684920A (en) * 1994-03-17 1997-11-04 Nippon Telegraph And Telephone Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein
JP3250376B2 (ja) * 1994-06-13 2002-01-28 ソニー株式会社 情報符号化方法及び装置並びに情報復号化方法及び装置
US5727125A (en) * 1994-12-05 1998-03-10 Motorola, Inc. Method and apparatus for synthesis of speech excitation waveforms
US5727119A (en) * 1995-03-27 1998-03-10 Dolby Laboratories Licensing Corporation Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase
EP0770254B1 (de) * 1995-05-10 2001-08-29 Koninklijke Philips Electronics N.V. Übertragungssystem und -verfahren für die sprachkodierung mit verbesserter detektion der grundfrequenz
EP0764939B1 (de) * 1995-09-19 2002-05-02 AT&T Corp. Synthese von Sprachsignalen in Abwesenheit kodierter Parameter
DE19638997B4 (de) * 1995-09-22 2009-12-10 Samsung Electronics Co., Ltd., Suwon Digitales Toncodierungsverfahren und digitale Toncodierungsvorrichtung
JP3259759B2 (ja) * 1996-07-22 2002-02-25 日本電気株式会社 音声信号伝送方法及び音声符号復号化システム
TW384434B (en) 1997-03-31 2000-03-11 Sony Corp Encoding method, device therefor, decoding method, device therefor and recording medium
EP1072036B1 (de) * 1998-04-15 2004-09-22 STMicroelectronics Asia Pacific Pte Ltd. Schnelle datenrahmen-optimierung in einem audio-kodierer
JP2000101439A (ja) * 1998-09-24 2000-04-07 Sony Corp 情報処理装置および方法、情報記録装置および方法、記録媒体、並びに提供媒体
US6505152B1 (en) * 1999-09-03 2003-01-07 Microsoft Corporation Method and apparatus for using formant models in speech systems
US20050091044A1 (en) * 2003-10-23 2005-04-28 Nokia Corporation Method and system for pitch contour quantization in audio coding
US20050091041A1 (en) * 2003-10-23 2005-04-28 Nokia Corporation Method and system for speech coding
DE602006015328D1 (de) * 2006-11-03 2010-08-19 Psytechnics Ltd Abtastfehlerkompensation
US9466307B1 (en) * 2007-05-22 2016-10-11 Digimarc Corporation Robust spectral encoding and decoding methods
CN101816041B (zh) * 2007-07-06 2012-12-26 法国电信 限制音频数字信号解码过程中的后处理步骤引起的失真的方法和装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184049A (en) * 1978-08-25 1980-01-15 Bell Telephone Laboratories, Incorporated Transform speech signal coding with pitch controlled adaptive quantizing
DE3167257D1 (en) * 1981-02-27 1985-01-03 Ibm Transmission methods and apparatus for implementing the method

Also Published As

Publication number Publication date
EP0700032B1 (de) 2000-10-11
JPH04506574A (ja) 1992-11-12
EP0700032A3 (de) 1997-06-04
AU5436590A (en) 1990-11-16
EP0470975B1 (de) 1996-09-11
ATE142814T1 (de) 1996-09-15
EP0470975A1 (de) 1992-02-19
EP0700032A2 (de) 1996-03-06
WO1990013111A1 (en) 1990-11-01
DE69033651D1 (de) 2000-11-16
US5042069A (en) 1991-08-20
EP0470975A4 (en) 1992-05-06
ATE196957T1 (de) 2000-10-15

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