AU8445198A - Audio encoder - Google Patents
Audio encoderInfo
- Publication number
- AU8445198A AU8445198A AU84451/98A AU8445198A AU8445198A AU 8445198 A AU8445198 A AU 8445198A AU 84451/98 A AU84451/98 A AU 84451/98A AU 8445198 A AU8445198 A AU 8445198A AU 8445198 A AU8445198 A AU 8445198A
- Authority
- AU
- Australia
- Prior art keywords
- audio encoder
- encoder
- 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.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
-
- 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
- G10L19/0204—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 subband decomposition
- G10L19/0208—Subband 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
- 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9708784A FR2766032B1 (en) | 1997-07-10 | 1997-07-10 | AUDIO ENCODER |
FR9708784 | 1997-07-10 | ||
PCT/FR1998/001408 WO1999003210A1 (en) | 1997-07-10 | 1998-07-01 | Audio encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
AU8445198A true AU8445198A (en) | 1999-02-08 |
Family
ID=9509096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU84451/98A Abandoned AU8445198A (en) | 1997-07-10 | 1998-07-01 | Audio encoder |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0995274B1 (en) |
AU (1) | AU8445198A (en) |
CA (1) | CA2296006A1 (en) |
DE (1) | DE69803457T2 (en) |
FR (1) | FR2766032B1 (en) |
WO (1) | WO1999003210A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2791166B1 (en) * | 1999-03-17 | 2003-01-10 | Matra Nortel Communications | ENCODING, DECODING AND TRANSCODING METHODS |
FR2791167B1 (en) | 1999-03-17 | 2003-01-10 | Matra Nortel Communications | AUDIO ENCODING, DECODING AND TRANSCODING METHODS |
US6434519B1 (en) * | 1999-07-19 | 2002-08-13 | Qualcomm Incorporated | Method and apparatus for identifying frequency bands to compute linear phase shifts between frame prototypes in a speech coder |
US6369722B1 (en) | 2000-03-17 | 2002-04-09 | Matra Nortel Communications | Coding, decoding and transcoding methods |
CN108845550B (en) * | 2018-08-30 | 2020-10-30 | 红塔烟草(集团)有限责任公司 | Error protection method for production control execution parameters |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622680A (en) * | 1984-10-17 | 1986-11-11 | General Electric Company | Hybrid subband coder/decoder method and apparatus |
IT1184023B (en) * | 1985-12-17 | 1987-10-22 | Cselt Centro Studi Lab Telecom | PROCEDURE AND DEVICE FOR CODING AND DECODING THE VOICE SIGNAL BY SUB-BAND ANALYSIS AND VECTORARY QUANTIZATION WITH DYNAMIC ALLOCATION OF THE CODING BITS |
US4956871A (en) * | 1988-09-30 | 1990-09-11 | At&T Bell Laboratories | Improving sub-band coding of speech at low bit rates by adding residual speech energy signals to sub-bands |
-
1997
- 1997-07-10 FR FR9708784A patent/FR2766032B1/en not_active Expired - Fee Related
-
1998
- 1998-07-01 CA CA002296006A patent/CA2296006A1/en not_active Abandoned
- 1998-07-01 WO PCT/FR1998/001408 patent/WO1999003210A1/en active IP Right Grant
- 1998-07-01 AU AU84451/98A patent/AU8445198A/en not_active Abandoned
- 1998-07-01 DE DE69803457T patent/DE69803457T2/en not_active Expired - Fee Related
- 1998-07-01 EP EP98935075A patent/EP0995274B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69803457T2 (en) | 2002-10-10 |
FR2766032B1 (en) | 1999-09-17 |
FR2766032A1 (en) | 1999-01-15 |
CA2296006A1 (en) | 1999-01-21 |
WO1999003210A1 (en) | 1999-01-21 |
EP0995274B1 (en) | 2002-01-09 |
EP0995274A1 (en) | 2000-04-26 |
DE69803457D1 (en) | 2002-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK6 | Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase |