DE69926019D1 - G.723.1 audiokodierer - Google Patents

G.723.1 audiokodierer

Info

Publication number
DE69926019D1
DE69926019D1 DE69926019T DE69926019T DE69926019D1 DE 69926019 D1 DE69926019 D1 DE 69926019D1 DE 69926019 T DE69926019 T DE 69926019T DE 69926019 T DE69926019 T DE 69926019T DE 69926019 D1 DE69926019 D1 DE 69926019D1
Authority
DE
Germany
Prior art keywords
audio coder
coder
audio
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
DE69926019T
Other languages
English (en)
Inventor
Wenshun Tian
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.)
STMicroelectronics Asia Pacific Pte Ltd
Original Assignee
STMicroelectronics Asia Pacific Pte Ltd
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 STMicroelectronics Asia Pacific Pte Ltd filed Critical STMicroelectronics Asia Pacific Pte Ltd
Application granted granted Critical
Publication of DE69926019D1 publication Critical patent/DE69926019D1/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
    • G10L19/04—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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • G10L2019/0008—Algebraic codebooks
DE69926019T 1999-09-30 1999-09-30 G.723.1 audiokodierer Expired - Lifetime DE69926019D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG1999/000096 WO2001024166A1 (en) 1999-09-30 1999-09-30 G.723.1 audio encoder

Publications (1)

Publication Number Publication Date
DE69926019D1 true DE69926019D1 (de) 2005-08-04

Family

ID=20430238

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69926019T Expired - Lifetime DE69926019D1 (de) 1999-09-30 1999-09-30 G.723.1 audiokodierer

Country Status (4)

Country Link
US (1) US6738733B1 (de)
EP (1) EP1221162B1 (de)
DE (1) DE69926019D1 (de)
WO (1) WO2001024166A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030014263A1 (en) * 2001-04-20 2003-01-16 Agere Systems Guardian Corp. Method and apparatus for efficient audio compression
US8265929B2 (en) * 2004-12-08 2012-09-11 Electronics And Telecommunications Research Institute Embedded code-excited linear prediction speech coding and decoding apparatus and method
SG123639A1 (en) * 2004-12-31 2006-07-26 St Microelectronics Asia A system and method for supporting dual speech codecs

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5701392A (en) * 1990-02-23 1997-12-23 Universite De Sherbrooke Depth-first algebraic-codebook search for fast coding of speech
DE69328450T2 (de) * 1992-06-29 2001-01-18 Nippon Telegraph & Telephone Verfahren und Vorrichtung zur Sprachkodierung
US5854998A (en) 1994-04-29 1998-12-29 Audiocodes Ltd. Speech processing system quantizer of single-gain pulse excitation in speech coder
US5602961A (en) * 1994-05-31 1997-02-11 Alaris, Inc. Method and apparatus for speech compression using multi-mode code excited linear predictive coding
FR2729245B1 (fr) * 1995-01-06 1997-04-11 Lamblin Claude Procede de codage de parole a prediction lineaire et excitation par codes algebriques
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
US5970444A (en) 1997-03-13 1999-10-19 Nippon Telegraph And Telephone Corporation Speech coding method
US6073092A (en) * 1997-06-26 2000-06-06 Telogy Networks, Inc. Method for speech coding based on a code excited linear prediction (CELP) model
JPH11119799A (ja) 1997-10-14 1999-04-30 Matsushita Electric Ind Co Ltd 音声符号化方法および音声符号化装置

Also Published As

Publication number Publication date
EP1221162A1 (de) 2002-07-10
EP1221162B1 (de) 2005-06-29
US6738733B1 (en) 2004-05-18
WO2001024166A1 (en) 2001-04-05

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Legal Events

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