ZA200505257B - Method for encoding and decoding audio at a variable rate - Google Patents
Method for encoding and decoding audio at a variable rate Download PDFInfo
- Publication number
- ZA200505257B ZA200505257B ZA200505257A ZA200505257A ZA200505257B ZA 200505257 B ZA200505257 B ZA 200505257B ZA 200505257 A ZA200505257 A ZA 200505257A ZA 200505257 A ZA200505257 A ZA 200505257A ZA 200505257 B ZA200505257 B ZA 200505257B
- Authority
- ZA
- South Africa
- Prior art keywords
- parameters
- subset
- coding bits
- signal
- coding
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 64
- 230000003595 spectral effect Effects 0.000 claims description 39
- 230000006870 function Effects 0.000 claims description 18
- 238000001228 spectrum Methods 0.000 claims description 18
- 230000000873 masking effect Effects 0.000 claims description 17
- 230000005236 sound signal Effects 0.000 claims description 14
- 230000009466 transformation Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 238000012937 correction Methods 0.000 claims description 4
- 230000008447 perception Effects 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 2
- 238000013139 quantization Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000000844 transformation 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
- G10L19/002—Dynamic bit allocation
-
- 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
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
-
- 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
-
- 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
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)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0300164A FR2849727B1 (fr) | 2003-01-08 | 2003-01-08 | Procede de codage et de decodage audio a debit variable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200505257B true ZA200505257B (en) | 2006-09-27 |
Family
ID=32524763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200505257A ZA200505257B (en) | 2003-01-08 | 2003-12-22 | Method for encoding and decoding audio at a variable rate |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US7457742B2 (zh) |
| EP (1) | EP1581930B1 (zh) |
| JP (1) | JP4390208B2 (zh) |
| KR (1) | KR101061404B1 (zh) |
| CN (1) | CN1735928B (zh) |
| AT (1) | ATE388466T1 (zh) |
| AU (1) | AU2003299395B2 (zh) |
| BR (1) | BR0317954A (zh) |
| CA (1) | CA2512179C (zh) |
| DE (1) | DE60319590T2 (zh) |
| ES (1) | ES2302530T3 (zh) |
| FR (1) | FR2849727B1 (zh) |
| MX (1) | MXPA05007356A (zh) |
| WO (1) | WO2004070706A1 (zh) |
| ZA (1) | ZA200505257B (zh) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1782419A1 (en) * | 2004-08-17 | 2007-05-09 | Koninklijke Philips Electronics N.V. | Scalable audio coding |
| US8099275B2 (en) * | 2004-10-27 | 2012-01-17 | Panasonic Corporation | Sound encoder and sound encoding method for generating a second layer decoded signal based on a degree of variation in a first layer decoded signal |
| KR100647336B1 (ko) | 2005-11-08 | 2006-11-23 | 삼성전자주식회사 | 적응적 시간/주파수 기반 오디오 부호화/복호화 장치 및방법 |
| WO2007119368A1 (ja) | 2006-03-17 | 2007-10-25 | Matsushita Electric Industrial Co., Ltd. | スケーラブル符号化装置およびスケーラブル符号化方法 |
| US7930173B2 (en) | 2006-06-19 | 2011-04-19 | Sharp Kabushiki Kaisha | Signal processing method, signal processing apparatus and recording medium |
| JP4827661B2 (ja) * | 2006-08-30 | 2011-11-30 | 富士通株式会社 | 信号処理方法及び装置 |
| US20080243518A1 (en) * | 2006-11-16 | 2008-10-02 | Alexey Oraevsky | System And Method For Compressing And Reconstructing Audio Files |
| EP1927981B1 (en) * | 2006-12-01 | 2013-02-20 | Nuance Communications, Inc. | Spectral refinement of audio signals |
| JP4871894B2 (ja) * | 2007-03-02 | 2012-02-08 | パナソニック株式会社 | 符号化装置、復号装置、符号化方法および復号方法 |
| JP4708446B2 (ja) | 2007-03-02 | 2011-06-22 | パナソニック株式会社 | 符号化装置、復号装置およびそれらの方法 |
| US7925783B2 (en) * | 2007-05-23 | 2011-04-12 | Microsoft Corporation | Transparent envelope for XML messages |
| JP5547081B2 (ja) * | 2007-11-02 | 2014-07-09 | 華為技術有限公司 | 音声復号化方法及び装置 |
| WO2010093224A2 (ko) * | 2009-02-16 | 2010-08-19 | 한국전자통신연구원 | 적응적 정현파 펄스 코딩을 이용한 오디오 신호의 인코딩 및 디코딩 방법 및 장치 |
| EP2249333B1 (en) * | 2009-05-06 | 2014-08-27 | Nuance Communications, Inc. | Method and apparatus for estimating a fundamental frequency of a speech signal |
| 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 |
| FR2947944A1 (fr) * | 2009-07-07 | 2011-01-14 | France Telecom | Codage/decodage perfectionne de signaux audionumeriques |
| US9009037B2 (en) * | 2009-10-14 | 2015-04-14 | Panasonic Intellectual Property Corporation Of America | Encoding device, decoding device, and methods therefor |
| US8924222B2 (en) | 2010-07-30 | 2014-12-30 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for coding of harmonic signals |
| US9208792B2 (en) | 2010-08-17 | 2015-12-08 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for noise injection |
| CN101950562A (zh) * | 2010-11-03 | 2011-01-19 | 武汉大学 | 基于音频关注度的分级编码方法及*** |
| NO2669468T3 (zh) * | 2011-05-11 | 2018-06-02 | ||
| RU2648595C2 (ru) * | 2011-05-13 | 2018-03-26 | Самсунг Электроникс Ко., Лтд. | Распределение битов, кодирование и декодирование аудио |
| WO2013142650A1 (en) | 2012-03-23 | 2013-09-26 | Dolby International Ab | Enabling sampling rate diversity in a voice communication system |
| ES2827278T3 (es) | 2014-04-17 | 2021-05-20 | Voiceage Corp | Método, dispositivo y memoria no transitoria legible por ordenador para codificación y decodificación predictiva linealde señales sonoras en la transición entre tramas que tienen diferentes tasas de muestreo |
| CN106992786B (zh) * | 2017-03-21 | 2020-07-07 | 深圳三星通信技术研究有限公司 | 一种基带数据压缩方法、装置和*** |
| KR102258814B1 (ko) * | 2018-10-04 | 2021-07-14 | 주식회사 엘지에너지솔루션 | Bms 간 통신 시스템 및 방법 |
| KR102352240B1 (ko) * | 2020-02-14 | 2022-01-17 | 국방과학연구소 | Amr 음성데이터의 압축포맷정보를 추정하는 방법 및 그 장치 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8421498D0 (en) * | 1984-08-24 | 1984-09-26 | British Telecomm | Frequency domain speech coding |
| DE19706516C1 (de) * | 1997-02-19 | 1998-01-15 | Fraunhofer Ges Forschung | Verfahren und Vorricntungen zum Codieren von diskreten Signalen bzw. zum Decodieren von codierten diskreten Signalen |
| US6016111A (en) * | 1997-07-31 | 2000-01-18 | Samsung Electronics Co., Ltd. | Digital data coding/decoding method and apparatus |
| FR2813722B1 (fr) * | 2000-09-05 | 2003-01-24 | France Telecom | Procede et dispositif de dissimulation d'erreurs et systeme de transmission comportant un tel dispositif |
| US7620545B2 (en) * | 2003-07-08 | 2009-11-17 | Industrial Technology Research Institute | Scale factor based bit shifting in fine granularity scalability audio coding |
-
2003
- 2003-01-08 FR FR0300164A patent/FR2849727B1/fr not_active Expired - Fee Related
- 2003-12-22 JP JP2004567790A patent/JP4390208B2/ja not_active Expired - Lifetime
- 2003-12-22 ES ES03799688T patent/ES2302530T3/es not_active Expired - Lifetime
- 2003-12-22 CN CN2003801084396A patent/CN1735928B/zh not_active Expired - Lifetime
- 2003-12-22 US US10/541,340 patent/US7457742B2/en active Active
- 2003-12-22 EP EP03799688A patent/EP1581930B1/fr not_active Expired - Lifetime
- 2003-12-22 DE DE60319590T patent/DE60319590T2/de not_active Expired - Lifetime
- 2003-12-22 MX MXPA05007356A patent/MXPA05007356A/es active IP Right Grant
- 2003-12-22 ZA ZA200505257A patent/ZA200505257B/en unknown
- 2003-12-22 CA CA2512179A patent/CA2512179C/fr not_active Expired - Lifetime
- 2003-12-22 BR BR0317954-0A patent/BR0317954A/pt not_active IP Right Cessation
- 2003-12-22 KR KR1020057012791A patent/KR101061404B1/ko active IP Right Grant
- 2003-12-22 AU AU2003299395A patent/AU2003299395B2/en not_active Expired
- 2003-12-22 WO PCT/FR2003/003870 patent/WO2004070706A1/fr active IP Right Grant
- 2003-12-22 AT AT03799688T patent/ATE388466T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006513457A (ja) | 2006-04-20 |
| FR2849727B1 (fr) | 2005-03-18 |
| AU2003299395B2 (en) | 2010-03-04 |
| JP4390208B2 (ja) | 2009-12-24 |
| CN1735928B (zh) | 2010-05-12 |
| ES2302530T3 (es) | 2008-07-16 |
| EP1581930B1 (fr) | 2008-03-05 |
| MXPA05007356A (es) | 2005-09-30 |
| ATE388466T1 (de) | 2008-03-15 |
| CA2512179A1 (fr) | 2004-08-19 |
| FR2849727A1 (fr) | 2004-07-09 |
| AU2003299395A1 (en) | 2004-08-30 |
| US7457742B2 (en) | 2008-11-25 |
| CA2512179C (fr) | 2013-04-16 |
| KR101061404B1 (ko) | 2011-09-01 |
| BR0317954A (pt) | 2005-11-29 |
| US20060036435A1 (en) | 2006-02-16 |
| EP1581930A1 (fr) | 2005-10-05 |
| DE60319590T2 (de) | 2009-03-26 |
| DE60319590D1 (de) | 2008-04-17 |
| KR20050092107A (ko) | 2005-09-20 |
| WO2004070706A1 (fr) | 2004-08-19 |
| CN1735928A (zh) | 2006-02-15 |
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