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 |
| 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 |
| 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 |
| PCT/SE1996/000481 WO1996035208A1 (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 |
| AU55196/96A AU5519696A (en) | 1995-05-03 | 1996-04-12 | A gain quantization method in analysis-by-synthesis linear p redictive speech coding |
| EP96912361A EP0824750B1 (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 |
| US6330531B1 (en) * | 1998-08-24 | 2001-12-11 | Conexant Systems, Inc. | Comb codebook structure |
| US7072832B1 (en) * | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
| 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 |
| CN1820306B (zh) * | 2003-05-01 | 2010-05-05 | 诺基亚有限公司 | 可变比特率宽带语音编码中增益量化的方法和装置 |
| 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 |
| US20100250260A1 (en) * | 2007-11-06 | 2010-09-30 | Lasse Laaksonen | 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 |
| EP2301015B1 (en) * | 2008-06-13 | 2019-09-04 | Nokia Technologies Oy | Method and apparatus for error concealment of encoded audio data |
| 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 |
| CA2821577C (en) * | 2011-02-15 | 2020-03-24 | Voiceage Corporation | Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a celp codec |
| JP5762636B2 (ja) * | 2012-07-05 | 2015-08-12 | 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 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 AU AU55196/96A patent/AU5519696A/en not_active Abandoned
- 1996-04-12 EP EP96912361A patent/EP0824750B1/en not_active Expired - Lifetime
- 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 |
|---|---|
| US5970442A (en) | 1999-10-19 |
| CN1188556A (zh) | 1998-07-22 |
| EP0824750B1 (en) | 2000-11-08 |
| SE9501640D0 (sv) | 1995-05-03 |
| DE69610915D1 (de) | 2000-12-14 |
| AU5519696A (en) | 1996-11-21 |
| DE69610915T2 (de) | 2001-03-15 |
| JP4059350B2 (ja) | 2008-03-12 |
| CN1151492C (zh) | 2004-05-26 |
| WO1996035208A1 (en) | 1996-11-07 |
| EP0824750A1 (en) | 1998-02-25 |
| JPH11504438A (ja) | 1999-04-20 |
| SE9501640L (sv) | 1996-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE504397C2 (sv) | Metod för förstärkningskvantisering vid linjärprediktiv talkodning med kodboksexcitering | |
| Kleijn et al. | Improved speech quality and efficient vector quantization in SELP | |
| EP0422232B1 (en) | Voice encoder | |
| US5675702A (en) | Multi-segment vector quantizer for a speech coder suitable for use in a radiotelephone | |
| US5396576A (en) | Speech coding and decoding methods using adaptive and random code books | |
| CA2214672C (en) | Analysis-by-synthesis linear predictive speech coder | |
| US5339384A (en) | Code-excited linear predictive coding with low delay for speech or audio signals | |
| US8538747B2 (en) | Method and apparatus for speech coding | |
| KR100190183B1 (ko) | 벡터 양자화장치 및 벡터 양자화방법 | |
| KR19990023932A (ko) | 스위치식 예측 양자화 방법 | |
| JPH10502191A (ja) | 代数的符号励振線形予測音声符号化方法 | |
| CA2642804C (en) | Fixed codebook searching device and fixed codebook searching method | |
| JPH0990995A (ja) | 音声符号化装置 | |
| KR20050072811A (ko) | 음성 코딩 시스템에서 이득 정보를 코딩하기 위한 방법 및장치 | |
| Taniguchi et al. | Pitch sharpening for perceptually improved CELP, and the sparse-delta codebook for reduced computation | |
| EP0557940A2 (en) | Speech coding system | |
| JP3095133B2 (ja) | 音響信号符号化方法 | |
| US20040039567A1 (en) | Structured VSELP codebook for low complexity search | |
| KR100416363B1 (ko) | 선형 예측 분석 대 합성 엔코딩 방법 및 엔코더 | |
| KR20000074365A (ko) | 음성 부호화시에 대수코드북에서의 대수코드 탐색방법 | |
| JPH08185199A (ja) | 音声符号化装置 | |
| Easton et al. | A CELP codebook and search technique using a Hopfield net | |
| Lee et al. | On reducing computational complexity of codebook search in CELP coding | |
| GB2199215A (en) | A stochastic coder | |
| Delprat et al. | Fractional excitation and other efficient transformed codebooks for CELP coding of speech |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |