ATE142814T1 - 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
ATE142814T1
ATE142814T1 AT90906553T AT90906553T ATE142814T1 AT E142814 T1 ATE142814 T1 AT E142814T1 AT 90906553 T AT90906553 T AT 90906553T AT 90906553 T AT90906553 T AT 90906553T AT E142814 T1 ATE142814 T1 AT E142814T1
Authority
AT
Austria
Prior art keywords
transform coefficients
voice signals
signals converted
spectral envelope
adaptive transformation
Prior art date
Application number
AT90906553T
Other languages
English (en)
Inventor
Harprit Chhatwal
Philip J Wilson
Original Assignee
Pacific Comm 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 Comm Sciences Inc filed Critical Pacific Comm Sciences Inc
Application granted granted Critical
Publication of ATE142814T1 publication Critical patent/ATE142814T1/de

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
    • G10L19/02—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 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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 TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
AT90906553T 1989-04-18 1990-04-09 Verfahren und einrichtung zur rekonstruktion von nicht quantisierten, mittels adaptiver transformation umgewandelten sprachsignalen. ATE142814T1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE142814T1 true ATE142814T1 (de) 1996-09-15

Family

ID=23330700

Family Applications (2)

Application Number Title Priority Date Filing Date
AT90906553T ATE142814T1 (de) 1989-04-18 1990-04-09 Verfahren und einrichtung zur rekonstruktion von nicht quantisierten, mittels adaptiver transformation umgewandelten sprachsignalen.
AT95202910T ATE196957T1 (de) 1989-04-18 1990-04-09 Verfahren und vorrichtung mit bitzuordnung zur quantisierung und dequantizierung von transformierten sprachsignalen.

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT95202910T ATE196957T1 (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) EP0700032B1 (de)
JP (1) JPH04506574A (de)
AT (2) ATE142814T1 (de)
AU (1) AU5436590A (de)
DE (2) DE69028525D1 (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
WO1992015986A1 (en) * 1991-03-05 1992-09-17 Picturetel Corporation Variable bit rate speech encoder
US5317672A (en) * 1991-03-05 1994-05-31 Picturetel Corporation Variable bit rate speech encoder
CA2075156A1 (en) * 1991-08-02 1993-02-03 Kenzo Akagiri Digital encoder with dynamic quantization bit allocation
DE69232256T2 (de) * 1991-09-27 2002-08-14 Koninklijke Philips Electronics N.V., Eindhoven 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
WO1995002240A1 (en) * 1993-07-07 1995-01-19 Picturetel Corporation A fixed bit rate speech encoder/decoder
US5664057A (en) * 1993-07-07 1997-09-02 Picturetel Corporation Fixed bit rate speech encoder/decoder
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
WO1996036041A2 (en) * 1995-05-10 1996-11-14 Philips Electronics N.V. Transmission system and method for encoding speech with improved pitch detection
DE69620967T2 (de) * 1995-09-19 2002-11-07 At & T Corp., New York Synthese von Sprachsignalen in Abwesenheit kodierter Parameter
US5864802A (en) * 1995-09-22 1999-01-26 Samsung Electronics Co., Ltd. Digital audio encoding method utilizing look-up table and device thereof
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
US20050091041A1 (en) * 2003-10-23 2005-04-28 Nokia Corporation Method and system for speech coding
US20050091044A1 (en) * 2003-10-23 2005-04-28 Nokia Corporation Method and system for pitch contour quantization in audio coding
EP1918909B1 (de) * 2006-11-03 2010-07-07 Psytechnics Ltd Abtastfehlerkompensation
US9466307B1 (en) * 2007-05-22 2016-10-11 Digimarc Corporation Robust spectral encoding and decoding methods
WO2009010672A2 (fr) * 2007-07-06 2009-01-22 France Telecom Limitation de distorsion introduite par un post-traitement au decodage d'un signal numerique
CN118433383A (zh) * 2024-05-09 2024-08-02 星宸科技股份有限公司 图像压缩装置与图像压缩方法

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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
JPH04506574A (ja) 1992-11-12
EP0470975A1 (de) 1992-02-19
EP0700032A2 (de) 1996-03-06
EP0700032B1 (de) 2000-10-11
ATE196957T1 (de) 2000-10-15
EP0470975B1 (de) 1996-09-11
DE69028525D1 (de) 1996-10-17
AU5436590A (en) 1990-11-16
EP0700032A3 (de) 1997-06-04
EP0470975A4 (en) 1992-05-06
DE69033651D1 (de) 2000-11-16
US5042069A (en) 1991-08-20
WO1990013111A1 (en) 1990-11-01

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