CA2830105C - Transform-domain codebook in a celp coder and decoder - Google Patents
Transform-domain codebook in a celp coder and decoder Download PDFInfo
- Publication number
- CA2830105C CA2830105C CA2830105A CA2830105A CA2830105C CA 2830105 C CA2830105 C CA 2830105C CA 2830105 A CA2830105 A CA 2830105A CA 2830105 A CA2830105 A CA 2830105A CA 2830105 C CA2830105 C CA 2830105C
- Authority
- CA
- Canada
- Prior art keywords
- codebook
- transform
- domain
- celp
- stage
- 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.)
- Active
Links
- 230000003044 adaptive effect Effects 0.000 claims abstract description 138
- 230000005236 sound signal Effects 0.000 claims abstract description 39
- 230000005284 excitation Effects 0.000 claims description 102
- 239000013598 vector Substances 0.000 claims description 37
- 230000015572 biosynthetic process Effects 0.000 claims description 34
- 238000003786 synthesis reaction Methods 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 20
- 238000013139 quantization Methods 0.000 claims description 17
- 238000004364 calculation method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 9
- 238000001914 filtration Methods 0.000 description 9
- 230000003111 delayed effect Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000001131 transforming effect Effects 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
- G10L19/12—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
- 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
- G10L19/0212—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 orthogonal transformation
-
- 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
-
- 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
- G10L19/02—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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/038—Vector quantisation, e.g. TwinVQ audio
-
- 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
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
- G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook
-
- 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
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (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)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161484968P | 2011-05-11 | 2011-05-11 | |
| US61/484,968 | 2011-05-11 | ||
| PCT/CA2012/000441 WO2012151676A1 (en) | 2011-05-11 | 2012-05-09 | Transform-domain codebook in a celp coder and decoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2830105A1 CA2830105A1 (en) | 2012-11-15 |
| CA2830105C true CA2830105C (en) | 2018-06-05 |
Family
ID=47138606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2830105A Active CA2830105C (en) | 2011-05-11 | 2012-05-09 | Transform-domain codebook in a celp coder and decoder |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8825475B2 (enExample) |
| EP (1) | EP2707687B1 (enExample) |
| JP (1) | JP6173304B2 (enExample) |
| CN (1) | CN103518122B (enExample) |
| CA (1) | CA2830105C (enExample) |
| DK (1) | DK2707687T3 (enExample) |
| ES (1) | ES2668920T3 (enExample) |
| NO (1) | NO2669468T3 (enExample) |
| PT (1) | PT2707687T (enExample) |
| WO (1) | WO2012151676A1 (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9263053B2 (en) * | 2012-04-04 | 2016-02-16 | Google Technology Holdings LLC | Method and apparatus for generating a candidate code-vector to code an informational signal |
| US9070356B2 (en) * | 2012-04-04 | 2015-06-30 | Google Technology Holdings LLC | Method and apparatus for generating a candidate code-vector to code an informational signal |
| ES3047123T3 (en) * | 2016-12-16 | 2025-12-03 | Ericsson Telefon Ab L M | Method and encoder for handling envelope representation coefficients |
| WO2019056107A1 (en) * | 2017-09-20 | 2019-03-28 | Voiceage Corporation | METHOD AND DEVICE FOR ALLOCATING A BINARY BUDGET BETWEEN SUB-FRAMES IN A CELP CODEC |
| WO2022097239A1 (ja) * | 2020-11-05 | 2022-05-12 | 日本電信電話株式会社 | 音信号精製方法、音信号復号方法、これらの装置、プログラム及び記録媒体 |
| CN112767956B (zh) * | 2021-04-09 | 2021-07-16 | 腾讯科技（深圳）有限公司 | 音频编码方法、装置、计算机设备及介质 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1281001B1 (it) * | 1995-10-27 | 1998-02-11 | Cselt Centro Studi Lab Telecom | Procedimento e apparecchiatura per codificare, manipolare e decodificare segnali audio. |
| US6134518A (en) * | 1997-03-04 | 2000-10-17 | International Business Machines Corporation | Digital audio signal coding using a CELP coder and a transform coder |
| ES2247741T3 (es) * | 1998-01-22 | 2006-03-01 | Deutsche Telekom Ag | Metodo para conmutacion controlada por señales entre esquemas de codificacion de audio. |
| US6453289B1 (en) * | 1998-07-24 | 2002-09-17 | Hughes Electronics Corporation | Method of noise reduction for speech codecs |
| US7072832B1 (en) * | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
| SE519985C2 (sv) * | 2000-09-15 | 2003-05-06 | Ericsson Telefon Ab L M | Kodning och avkodning av signaler från flera kanaler |
| US20030135374A1 (en) * | 2002-01-16 | 2003-07-17 | Hardwick John C. | Speech synthesizer |
| CA2388358A1 (en) | 2002-05-31 | 2003-11-30 | Voiceage Corporation | A method and device for multi-rate lattice vector quantization |
| FR2849727B1 (fr) * | 2003-01-08 | 2005-03-18 | France Telecom | Procede de codage et de decodage audio a debit variable |
| CA2524243C (en) * | 2003-04-30 | 2013-02-19 | Matsushita Electric Industrial Co. Ltd. | Speech coding apparatus including enhancement layer performing long term prediction |
| CA2457988A1 (en) * | 2004-02-18 | 2005-08-18 | Voiceage Corporation | Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization |
| US7177804B2 (en) * | 2005-05-31 | 2007-02-13 | Microsoft Corporation | Sub-band voice codec with multi-stage codebooks and redundant coding |
| ES2356492T3 (es) * | 2005-07-22 | 2011-04-08 | France Telecom | Método de conmutación de tasa de transmisión en decodificación de audio escalable en tasa de transmisión y ancho de banda. |
| US7877253B2 (en) * | 2006-10-06 | 2011-01-25 | Qualcomm Incorporated | Systems, methods, and apparatus for frame erasure recovery |
| CN101578508B (zh) * | 2006-10-24 | 2013-07-17 | 沃伊斯亚吉公司 | 用于对语音信号中的过渡帧进行编码的方法和设备 |
| US8566106B2 (en) * | 2007-09-11 | 2013-10-22 | Voiceage Corporation | Method and device for fast algebraic codebook search in speech and audio coding |
| US8515767B2 (en) * | 2007-11-04 | 2013-08-20 | Qualcomm Incorporated | Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs |
| WO2009114656A1 (en) * | 2008-03-14 | 2009-09-17 | Dolby Laboratories Licensing Corporation | Multimode coding of speech-like and non-speech-like signals |
| EP2345027B1 (en) * | 2008-10-10 | 2018-04-18 | Telefonaktiebolaget LM Ericsson (publ) | Energy-conserving multi-channel audio coding and decoding |
| FR2947945A1 (fr) * | 2009-07-07 | 2011-01-14 | France Telecom | Allocation de bits dans un codage/decodage d'amelioration d'un codage/decodage hierarchique de signaux audionumeriques |
| AU2010309894B2 (en) * | 2009-10-20 | 2014-03-13 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Multi-mode audio codec and CELP coding adapted therefore |
| RU2547238C2 (ru) | 2010-04-14 | 2015-04-10 | Войсэйдж Корпорейшн | Гибкая и масштабируемая комбинированная обновляющая кодовая книга для использования в кодере и декодере celp |
-
2008
- 2008-10-17 NO NO13180475A patent/NO2669468T3/no unknown
-
2012
- 2012-05-09 EP EP12782641.0A patent/EP2707687B1/en active Active
- 2012-05-09 CN CN201280022757.XA patent/CN103518122B/zh active Active
- 2012-05-09 CA CA2830105A patent/CA2830105C/en active Active
- 2012-05-09 DK DK12782641.0T patent/DK2707687T3/en active
- 2012-05-09 PT PT127826410T patent/PT2707687T/pt unknown
- 2012-05-09 ES ES12782641.0T patent/ES2668920T3/es active Active
- 2012-05-09 WO PCT/CA2012/000441 patent/WO2012151676A1/en not_active Ceased
- 2012-05-09 JP JP2014509572A patent/JP6173304B2/ja active Active
- 2012-05-11 US US13/469,744 patent/US8825475B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| HK1191395A1 (zh) | 2014-07-25 |
| EP2707687A1 (en) | 2014-03-19 |
| NO2669468T3 (enExample) | 2018-06-02 |
| CA2830105A1 (en) | 2012-11-15 |
| CN103518122A (zh) | 2014-01-15 |
| WO2012151676A1 (en) | 2012-11-15 |
| JP6173304B2 (ja) | 2017-08-02 |
| EP2707687B1 (en) | 2018-03-28 |
| JP2014517933A (ja) | 2014-07-24 |
| ES2668920T3 (es) | 2018-05-23 |
| US20120290295A1 (en) | 2012-11-15 |
| PT2707687T (pt) | 2018-05-21 |
| CN103518122B (zh) | 2016-04-20 |
| EP2707687A4 (en) | 2014-11-19 |
| US8825475B2 (en) | 2014-09-02 |
| DK2707687T3 (en) | 2018-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2729665E (en) | Variable bit rate lpc filter quantizing and inverse quantizing device and method | |
| EP0503684B1 (en) | Adaptive filtering method for speech and audio | |
| EP0942411B1 (en) | Audio signal coding and decoding apparatus | |
| CA2862712C (en) | Multi-mode audio codec and celp coding adapted therefore | |
| CA2830105C (en) | Transform-domain codebook in a celp coder and decoder | |
| CA2789107C (en) | Flexible and scalable combined innovation codebook for use in celp coder and decoder | |
| Kroon et al. | Quantization procedures for the excitation in CELP coders | |
| CN104584123B (zh) | 解码方法、以及解码装置 | |
| EP2936484B1 (en) | Apparatus and method for processing an encoded signal and encoder and method for generating an encoded signal | |
| HK1191395B (en) | Transform-domain codebook in a celp coder and decoder | |
| Tseng | An analysis-by-synthesis linear predictive model for narrowband speech coding | |
| Ashley et al. | Closed Loop Dynamic Bit Allocation for Excitation Parameters in Analysis-by-Synthesis Speech Codec | |
| HK1175581A (en) | Flexible and scalable combined innovation codebook for use in celp coder and decoder | |
| HK1175581B (en) | Flexible and scalable combined innovation codebook for use in celp coder and decoder | |
| JPH01179100A (ja) | 適応ピッチ予測方式 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20150416 |