SE504397C2 - Metod för förstärkningskvantisering vid linjärprediktiv talkodning med kodboksexcitering - Google Patents
Metod för förstärkningskvantisering vid linjärprediktiv talkodning med kodboksexciteringInfo
- Publication number
- SE504397C2 SE504397C2 SE9501640A SE9501640A SE504397C2 SE 504397 C2 SE504397 C2 SE 504397C2 SE 9501640 A SE9501640 A SE 9501640A SE 9501640 A SE9501640 A SE 9501640A SE 504397 C2 SE504397 C2 SE 504397C2
- Authority
- SE
- Sweden
- Prior art keywords
- codebook
- gain
- const
- floatvec
- optimal
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000005284 excitation Effects 0.000 title claims abstract description 49
- 238000013139 quantization Methods 0.000 title claims abstract description 35
- 230000003321 amplification Effects 0.000 title 1
- 238000003199 nucleic acid amplification method Methods 0.000 title 1
- 239000013598 vector Substances 0.000 claims abstract description 108
- 230000003044 adaptive effect Effects 0.000 claims description 18
- 238000003786 synthesis reaction Methods 0.000 abstract description 13
- 239000011800 void material Substances 0.000 description 47
- 239000011159 matrix material Substances 0.000 description 32
- 230000000875 corresponding effect Effects 0.000 description 14
- 238000004458 analytical method Methods 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 8
- 230000004044 response Effects 0.000 description 8
- 238000010606 normalization Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- -1 / * in Substances 0.000 description 1
- 241000276457 Gadidae Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
-
- 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
- G10L2019/0004—Design or structure of the codebook
- G10L2019/0005—Multi-stage vector quantisation
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)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9501640A SE504397C2 (sv) | 1995-05-03 | 1995-05-03 | Metod för förstärkningskvantisering vid linjärprediktiv talkodning med kodboksexcitering |
JP53322296A JP4059350B2 (ja) | 1995-05-03 | 1996-04-12 | 分析合成線形予測音声符号化における利得量子化方法 |
AU55196/96A AU5519696A (en) | 1995-05-03 | 1996-04-12 | A gain quantization method in analysis-by-synthesis linear p redictive speech coding |
CNB961949120A CN1151492C (zh) | 1995-05-03 | 1996-04-12 | 综合-分析线性预测语音编码中的增益量化方法 |
EP96912361A EP0824750B1 (en) | 1995-05-03 | 1996-04-12 | A gain quantization method in analysis-by-synthesis linear predictive speech coding |
DE69610915T DE69610915T2 (de) | 1995-05-03 | 1996-04-12 | Verfahren zur quantisierung des verstärkungsfaktors für die linear-prädiktive sprachkodierung mittels analyse-durch-synthese |
PCT/SE1996/000481 WO1996035208A1 (en) | 1995-05-03 | 1996-04-12 | A gain quantization method in analysis-by-synthesis linear predictive speech coding |
US08/961,867 US5970442A (en) | 1995-05-03 | 1997-10-31 | Gain quantization in analysis-by-synthesis linear predicted speech coding using linear intercodebook logarithmic gain prediction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9501640A SE504397C2 (sv) | 1995-05-03 | 1995-05-03 | Metod för förstärkningskvantisering vid linjärprediktiv talkodning med kodboksexcitering |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9501640D0 SE9501640D0 (sv) | 1995-05-03 |
SE9501640L SE9501640L (sv) | 1996-11-04 |
SE504397C2 true SE504397C2 (sv) | 1997-01-27 |
Family
ID=20398181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9501640A SE504397C2 (sv) | 1995-05-03 | 1995-05-03 | Metod för förstärkningskvantisering vid linjärprediktiv talkodning med kodboksexcitering |
Country Status (8)
Country | Link |
---|---|
US (1) | US5970442A (ja) |
EP (1) | EP0824750B1 (ja) |
JP (1) | JP4059350B2 (ja) |
CN (1) | CN1151492C (ja) |
AU (1) | AU5519696A (ja) |
DE (1) | DE69610915T2 (ja) |
SE (1) | SE504397C2 (ja) |
WO (1) | WO1996035208A1 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6266419B1 (en) * | 1997-07-03 | 2001-07-24 | At&T Corp. | Custom character-coding compression for encoding and watermarking media content |
JP3998330B2 (ja) * | 1998-06-08 | 2007-10-24 | 沖電気工業株式会社 | 符号化装置 |
US7072832B1 (en) | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
US6330531B1 (en) * | 1998-08-24 | 2001-12-11 | Conexant Systems, Inc. | Comb codebook structure |
SE519563C2 (sv) * | 1998-09-16 | 2003-03-11 | Ericsson Telefon Ab L M | Förfarande och kodare för linjär prediktiv analys-genom- synteskodning |
US6397178B1 (en) | 1998-09-18 | 2002-05-28 | Conexant Systems, Inc. | Data organizational scheme for enhanced selection of gain parameters for speech coding |
US6581032B1 (en) * | 1999-09-22 | 2003-06-17 | Conexant Systems, Inc. | Bitstream protocol for transmission of encoded voice signals |
CA2327041A1 (en) * | 2000-11-22 | 2002-05-22 | Voiceage Corporation | A method for indexing pulse positions and signs in algebraic codebooks for efficient coding of wideband signals |
DE10124420C1 (de) * | 2001-05-18 | 2002-11-28 | Siemens Ag | Verfahren zur Codierung und zur Übertragung von Sprachsignalen |
JP4390803B2 (ja) * | 2003-05-01 | 2009-12-24 | ノキア コーポレイション | 可変ビットレート広帯域通話符号化におけるゲイン量子化方法および装置 |
DE102004036154B3 (de) * | 2004-07-26 | 2005-12-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur robusten Klassifizierung von Audiosignalen sowie Verfahren zu Einrichtung und Betrieb einer Audiosignal-Datenbank sowie Computer-Programm |
US20070174054A1 (en) * | 2006-01-25 | 2007-07-26 | Mediatek Inc. | Communication apparatus with signal mode and voice mode |
EP2227682A1 (en) * | 2007-11-06 | 2010-09-15 | Nokia Corporation | An encoder |
CA2704812C (en) * | 2007-11-06 | 2016-05-17 | Nokia Corporation | An encoder for encoding an audio signal |
CN101499281B (zh) * | 2008-01-31 | 2011-04-27 | 华为技术有限公司 | 一种语音编码中的增益量化方法及装置 |
CN102057424B (zh) * | 2008-06-13 | 2015-06-17 | 诺基亚公司 | 用于经编码的音频数据的错误隐藏的方法和装置 |
US9626982B2 (en) | 2011-02-15 | 2017-04-18 | Voiceage Corporation | Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a CELP codec |
WO2012109734A1 (en) * | 2011-02-15 | 2012-08-23 | Voiceage Corporation | Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a celp codec |
WO2014007349A1 (ja) * | 2012-07-05 | 2014-01-09 | 日本電信電話株式会社 | 符号化装置、復号装置、これらの方法、プログラム、および記録媒体 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2776050B2 (ja) * | 1991-02-26 | 1998-07-16 | 日本電気株式会社 | 音声符号化方式 |
GB9118217D0 (en) * | 1991-08-23 | 1991-10-09 | British Telecomm | Speech processing apparatus |
US5327520A (en) * | 1992-06-04 | 1994-07-05 | At&T Bell Laboratories | Method of use of voice message coder/decoder |
US5313554A (en) * | 1992-06-16 | 1994-05-17 | At&T Bell Laboratories | Backward gain adaptation method in code excited linear prediction coders |
EP0751496B1 (en) * | 1992-06-29 | 2000-04-19 | Nippon Telegraph And Telephone Corporation | Speech coding method and apparatus for the same |
US5615298A (en) * | 1994-03-14 | 1997-03-25 | Lucent Technologies Inc. | Excitation signal synthesis during frame erasure or packet loss |
-
1995
- 1995-05-03 SE SE9501640A patent/SE504397C2/sv not_active IP Right Cessation
-
1996
- 1996-04-12 JP JP53322296A patent/JP4059350B2/ja not_active Expired - Lifetime
- 1996-04-12 EP EP96912361A patent/EP0824750B1/en not_active Expired - Lifetime
- 1996-04-12 AU AU55196/96A patent/AU5519696A/en not_active Abandoned
- 1996-04-12 WO PCT/SE1996/000481 patent/WO1996035208A1/en active IP Right Grant
- 1996-04-12 CN CNB961949120A patent/CN1151492C/zh not_active Expired - Fee Related
- 1996-04-12 DE DE69610915T patent/DE69610915T2/de not_active Expired - Lifetime
-
1997
- 1997-10-31 US US08/961,867 patent/US5970442A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH11504438A (ja) | 1999-04-20 |
WO1996035208A1 (en) | 1996-11-07 |
DE69610915D1 (de) | 2000-12-14 |
US5970442A (en) | 1999-10-19 |
CN1188556A (zh) | 1998-07-22 |
EP0824750B1 (en) | 2000-11-08 |
CN1151492C (zh) | 2004-05-26 |
DE69610915T2 (de) | 2001-03-15 |
SE9501640L (sv) | 1996-11-04 |
EP0824750A1 (en) | 1998-02-25 |
AU5519696A (en) | 1996-11-21 |
SE9501640D0 (sv) | 1995-05-03 |
JP4059350B2 (ja) | 2008-03-12 |
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Legal Events
Date | Code | Title | Description |
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NUG | Patent has lapsed |