DE69926019D1 - G.723.1 audiokodierer - Google Patents
G.723.1 audiokodiererInfo
- 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
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
- G10L19/08—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 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
- G10L2019/0001—Codebooks
- G10L2019/0007—Codebook element generation
- G10L2019/0008—Algebraic codebooks
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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
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)
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)
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 |
EP0577488B9 (de) * | 1992-06-29 | 2007-10-03 | Nippon Telegraph And Telephone Corporation | 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 |
-
1999
- 1999-09-30 DE DE69926019T patent/DE69926019D1/de not_active Expired - Lifetime
- 1999-09-30 US US10/089,758 patent/US6738733B1/en not_active Expired - Lifetime
- 1999-09-30 WO PCT/SG1999/000096 patent/WO2001024166A1/en active IP Right Grant
- 1999-09-30 EP EP99948015A patent/EP1221162B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6738733B1 (en) | 2004-05-18 |
WO2001024166A1 (en) | 2001-04-05 |
EP1221162A1 (de) | 2002-07-10 |
EP1221162B1 (de) | 2005-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |