DE69804121T2 - Sprachkodierung - Google Patents

Sprachkodierung

Info

Publication number
DE69804121T2
DE69804121T2 DE69804121T DE69804121T DE69804121T2 DE 69804121 T2 DE69804121 T2 DE 69804121T2 DE 69804121 T DE69804121 T DE 69804121T DE 69804121 T DE69804121 T DE 69804121T DE 69804121 T2 DE69804121 T2 DE 69804121T2
Authority
DE
Germany
Prior art keywords
coefficients
lpc coefficients
lpc
frame
current frame
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
DE69804121T
Other languages
German (de)
English (en)
Other versions
DE69804121D1 (de
Inventor
Ari Lakaniemi
Pasi Ojala
T. Ruoppila
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
Nokia 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 Nokia Oyj, Nokia Inc filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE69804121D1 publication Critical patent/DE69804121D1/de
Publication of DE69804121T2 publication Critical patent/DE69804121T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/002—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
    • G10L19/07—Line spectrum pair [LSP] vocoders

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)
DE69804121T 1997-10-02 1998-09-14 Sprachkodierung Expired - Lifetime DE69804121T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI973873A FI973873A7 (fi) 1997-10-02 1997-10-02 Puhekoodaus
PCT/FI1998/000715 WO1999018565A2 (en) 1997-10-02 1998-09-14 Speech coding

Publications (2)

Publication Number Publication Date
DE69804121D1 DE69804121D1 (de) 2002-04-11
DE69804121T2 true DE69804121T2 (de) 2002-10-31

Family

ID=8549657

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69804121T Expired - Lifetime DE69804121T2 (de) 1997-10-02 1998-09-14 Sprachkodierung

Country Status (7)

Country Link
US (1) US6202045B1 (https=)
EP (1) EP1019907B1 (https=)
JP (1) JP2001519551A (https=)
AU (1) AU9164998A (https=)
DE (1) DE69804121T2 (https=)
FI (1) FI973873A7 (https=)
WO (1) WO1999018565A2 (https=)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI116992B (fi) * 1999-07-05 2006-04-28 Nokia Corp Menetelmät, järjestelmä ja laitteet audiosignaalin koodauksen ja siirron tehostamiseksi
US6988065B1 (en) * 1999-08-23 2006-01-17 Matsushita Electric Industrial Co., Ltd. Voice encoder and voice encoding method
US7315815B1 (en) * 1999-09-22 2008-01-01 Microsoft Corporation LPC-harmonic vocoder with superframe structure
US7110947B2 (en) * 1999-12-10 2006-09-19 At&T Corp. Frame erasure concealment technique for a bitstream-based feature extractor
US6606591B1 (en) * 2000-04-13 2003-08-12 Conexant Systems, Inc. Speech coding employing hybrid linear prediction coding
WO2002037476A1 (en) * 2000-11-03 2002-05-10 Koninklijke Philips Electronics N.V. Sinusoidal model based coding of audio signals
EP1527441B1 (en) * 2002-07-16 2017-09-06 Koninklijke Philips N.V. Audio coding
US8090577B2 (en) * 2002-08-08 2012-01-03 Qualcomm Incorported Bandwidth-adaptive quantization
CA2415105A1 (en) * 2002-12-24 2004-06-24 Voiceage Corporation A method and device for robust predictive vector quantization of linear prediction parameters in variable bit rate speech coding
US7668712B2 (en) * 2004-03-31 2010-02-23 Microsoft Corporation Audio encoding and decoding with intra frames and adaptive forward error correction
US7386445B2 (en) * 2005-01-18 2008-06-10 Nokia Corporation Compensation of transient effects in transform coding
US7177804B2 (en) 2005-05-31 2007-02-13 Microsoft Corporation Sub-band voice codec with multi-stage codebooks and redundant coding
US7831421B2 (en) * 2005-05-31 2010-11-09 Microsoft Corporation Robust decoder
US7707034B2 (en) * 2005-05-31 2010-04-27 Microsoft Corporation Audio codec post-filter
US7831420B2 (en) * 2006-04-04 2010-11-09 Qualcomm Incorporated Voice modifier for speech processing systems
CN101770777B (zh) * 2008-12-31 2012-04-25 华为技术有限公司 一种线性预测编码频带扩展方法、装置和编解码系统
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
GB2466675B (en) 2009-01-06 2013-03-06 Skype Speech coding
GB2466670B (en) * 2009-01-06 2012-11-14 Skype Speech encoding
GB2466674B (en) 2009-01-06 2013-11-13 Skype Speech coding
GB2466671B (en) 2009-01-06 2013-03-27 Skype Speech encoding
US9058818B2 (en) * 2009-10-22 2015-06-16 Broadcom Corporation User attribute derivation and update for network/peer assisted speech coding
US9613630B2 (en) * 2009-11-12 2017-04-04 Lg Electronics Inc. Apparatus for processing a signal and method thereof for determining an LPC coding degree based on reduction of a value of LPC residual
EP2551848A4 (en) * 2010-03-23 2016-07-27 Lg Electronics Inc METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNAL
KR101627085B1 (ko) * 2012-01-20 2016-06-03 한국전자통신연구원 양자화 행렬의 부호화 방법 및 복호화 방법과 이를 이용하는 장치
EP3874495B1 (en) 2018-10-29 2022-11-30 Dolby International AB Methods and apparatus for rate quality scalable coding with generative models

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969192A (en) 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
US4890327A (en) * 1987-06-03 1989-12-26 Itt Corporation Multi-rate digital voice coder apparatus
US5243686A (en) * 1988-12-09 1993-09-07 Oki Electric Industry Co., Ltd. Multi-stage linear predictive analysis method for feature extraction from acoustic signals
CA2010830C (en) 1990-02-23 1996-06-25 Jean-Pierre Adoul Dynamic codebook for efficient speech coding based on algebraic codes
US5630011A (en) * 1990-12-05 1997-05-13 Digital Voice Systems, Inc. Quantization of harmonic amplitudes representing speech
FI95085C (fi) 1992-05-11 1995-12-11 Nokia Mobile Phones Ltd Menetelmä puhesignaalin digitaaliseksi koodaamiseksi sekä puhekooderi menetelmän suorittamiseksi
FI91345C (fi) 1992-06-24 1994-06-10 Nokia Mobile Phones Ltd Menetelmä kanavanvaihdon tehostamiseksi
FI96248C (fi) 1993-05-06 1996-05-27 Nokia Mobile Phones Ltd Menetelmä pitkän aikavälin synteesisuodattimen toteuttamiseksi sekä synteesisuodatin puhekoodereihin
FI98163C (fi) 1994-02-08 1997-04-25 Nokia Mobile Phones Ltd Koodausjärjestelmä parametriseen puheenkoodaukseen
JP3235703B2 (ja) * 1995-03-10 2001-12-04 日本電信電話株式会社 ディジタルフィルタのフィルタ係数決定方法
US5890110A (en) * 1995-03-27 1999-03-30 The Regents Of The University Of California Variable dimension vector quantization
US5754733A (en) * 1995-08-01 1998-05-19 Qualcomm Incorporated Method and apparatus for generating and encoding line spectral square roots
FR2742568B1 (fr) * 1995-12-15 1998-02-13 Catherine Quinquis Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application
FI964975A7 (fi) * 1996-12-12 1998-06-13 Nokia Mobile Phones Ltd Menetelmä ja laite puheen koodaamiseksi

Also Published As

Publication number Publication date
WO1999018565A3 (en) 1999-06-17
JP2001519551A (ja) 2001-10-23
FI973873A7 (fi) 1999-04-03
EP1019907A2 (en) 2000-07-19
FI973873A0 (fi) 1997-10-02
US6202045B1 (en) 2001-03-13
WO1999018565A2 (en) 1999-04-15
EP1019907B1 (en) 2002-03-06
AU9164998A (en) 1999-04-27
DE69804121D1 (de) 2002-04-11

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: NOKIA CORP., ESPOO, FI

8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: BECKER, KURIG, STRAUS, 80336 MUENCHEN