EP1172803A3 - Vector quantization system and method of operation - Google Patents
Vector quantization system and method of operation Download PDFInfo
- Publication number
- EP1172803A3 EP1172803A3 EP01116530A EP01116530A EP1172803A3 EP 1172803 A3 EP1172803 A3 EP 1172803A3 EP 01116530 A EP01116530 A EP 01116530A EP 01116530 A EP01116530 A EP 01116530A EP 1172803 A3 EP1172803 A3 EP 1172803A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- lsf
- estimate
- term
- long
- mean
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000013139 quantization Methods 0.000 title abstract 2
- 230000007774 longterm Effects 0.000 abstract 3
- 230000003595 spectral effect Effects 0.000 abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
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
- G10L19/06—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)
- Spectroscopy & Molecular Physics (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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0017145A GB2364870A (en) | 2000-07-13 | 2000-07-13 | Vector quantization system for speech encoding/decoding |
GB0017145 | 2000-07-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1172803A2 EP1172803A2 (en) | 2002-01-16 |
EP1172803A3 true EP1172803A3 (en) | 2004-01-14 |
Family
ID=9895545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01116530A Withdrawn EP1172803A3 (en) | 2000-07-13 | 2001-07-09 | Vector quantization system and method of operation |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1172803A3 (en) |
GB (1) | GB2364870A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5966688A (en) * | 1997-10-28 | 1999-10-12 | Hughes Electronics Corporation | Speech mode based multi-stage vector quantizer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3033060B2 (en) * | 1988-12-22 | 2000-04-17 | 国際電信電話株式会社 | Voice prediction encoding / decoding method |
US5664053A (en) * | 1995-04-03 | 1997-09-02 | Universite De Sherbrooke | Predictive split-matrix quantization of spectral parameters for efficient coding of speech |
US6081776A (en) * | 1998-07-13 | 2000-06-27 | Lockheed Martin Corp. | Speech coding system and method including adaptive finite impulse response filter |
-
2000
- 2000-07-13 GB GB0017145A patent/GB2364870A/en not_active Withdrawn
-
2001
- 2001-07-09 EP EP01116530A patent/EP1172803A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5966688A (en) * | 1997-10-28 | 1999-10-12 | Hughes Electronics Corporation | Speech mode based multi-stage vector quantizer |
Non-Patent Citations (4)
Title |
---|
AARSKOG A: "A LONG-TERM PREDICTIVE ADPCM CODER WITH SHORT-TERM PREDICTION AND VECTOR QUANTIZATION", IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH & SIGNAL PROCESSING (ICASSP'91), TORONTO, CANADA, vol. 1, 14 May 1991 (1991-05-14) - 17 May 1991 (1991-05-17), IEEE, New York, USA, pages 37 - 40, XP000245161, ISBN: 0-7803-0003-3 * |
CHO INHWAN ET AL: "Predictive pyramid vector quantisation of LSF parameters", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 34, no. 8, 16 April 1998 (1998-04-16), pages 735 - 736, XP006009612, ISSN: 0013-5194 * |
OHMURO H ET AL: "VECTOR QUANTIZATION OF LSP PARAMETERS USING MOVING AVERAGE INTERFRAME PREDICTION", ELECTRONICS & COMMUNICATIONS IN JAPAN, PART III - FUNDAMENTAL ELECTRONIC SCIENCE, SCRIPTA TECHNICA. NEW YORK, US, vol. 77, no. 10, PART 3, 1 October 1994 (1994-10-01), pages 12 - 25, XP000527379, ISSN: 1042-0967 * |
SKOGLUND J ET AL: "PREDICTIVE VQ FOR NOISY CHANNEL SPECTRUM CODING: AR OR MA?", IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP'97), MUNICH, GERMANY, vol. 2, 21 April 1997 (1997-04-21) - 24 April 1997 (1997-04-24), IEEE COMP. SOC. PRESS, USA, pages 1351 - 1354, XP000822706, ISBN: 0-8186-7920-4 * |
Also Published As
Publication number | Publication date |
---|---|
GB0017145D0 (en) | 2000-08-30 |
GB2364870A (en) | 2002-02-06 |
EP1172803A2 (en) | 2002-01-16 |
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