CA2368453C - Utilisation de quantification a gain adapte et de longueurs de symboles non uniformes pour codage audio - Google Patents
Utilisation de quantification a gain adapte et de longueurs de symboles non uniformes pour codage audio Download PDFInfo
- Publication number
- CA2368453C CA2368453C CA002368453A CA2368453A CA2368453C CA 2368453 C CA2368453 C CA 2368453C CA 002368453 A CA002368453 A CA 002368453A CA 2368453 A CA2368453 A CA 2368453A CA 2368453 C CA2368453 C CA 2368453C
- Authority
- CA
- Canada
- Prior art keywords
- components
- subband
- signal
- gain factor
- quantized
- 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.)
- Expired - Lifetime
Links
- 238000013139 quantization Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 claims abstract description 71
- 230000000295 complement effect Effects 0.000 claims description 26
- 238000004590 computer program Methods 0.000 claims description 21
- 238000004458 analytical method Methods 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 238000003786 synthesis reaction Methods 0.000 claims description 13
- 230000004044 response Effects 0.000 claims description 9
- 230000001419 dependent effect Effects 0.000 claims description 7
- 230000006870 function Effects 0.000 abstract description 57
- 230000008901 benefit Effects 0.000 abstract description 35
- 230000008569 process Effects 0.000 abstract description 22
- 230000005236 sound signal Effects 0.000 abstract description 14
- 238000012545 processing Methods 0.000 abstract description 4
- 238000013507 mapping Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 230000000873 masking effect Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000012549 training Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000011800 void material Substances 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
- G10L19/02—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
-
- 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
- G10L19/0204—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 subband decomposition
- G10L19/0208—Subband 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)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29357799A | 1999-04-16 | 1999-04-16 | |
| US09/293,577 | 1999-04-16 | ||
| US09/349,645 | 1999-07-08 | ||
| US09/349,645 US6246345B1 (en) | 1999-04-16 | 1999-07-08 | Using gain-adaptive quantization and non-uniform symbol lengths for improved audio coding |
| PCT/US2000/009604 WO2000063886A1 (fr) | 1999-04-16 | 2000-04-11 | Mise en oeuvre d'une quantification a gain adaptatif et de longueurs de symboles non uniformes pour codage audio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2368453A1 CA2368453A1 (fr) | 2000-10-26 |
| CA2368453C true CA2368453C (fr) | 2009-12-08 |
Family
ID=26968028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002368453A Expired - Lifetime CA2368453C (fr) | 1999-04-16 | 2000-04-11 | Utilisation de quantification a gain adapte et de longueurs de symboles non uniformes pour codage audio |
Country Status (17)
| Country | Link |
|---|---|
| EP (1) | EP1175670B2 (fr) |
| JP (1) | JP4843142B2 (fr) |
| KR (1) | KR100893281B1 (fr) |
| CN (1) | CN1158646C (fr) |
| AR (1) | AR023444A1 (fr) |
| AT (1) | ATE269574T1 (fr) |
| AU (1) | AU771454B2 (fr) |
| BR (1) | BRPI0010672B1 (fr) |
| CA (1) | CA2368453C (fr) |
| DE (1) | DE60011606T3 (fr) |
| DK (1) | DK1175670T4 (fr) |
| ES (1) | ES2218148T5 (fr) |
| HK (1) | HK1045747B (fr) |
| MX (1) | MXPA01010447A (fr) |
| MY (1) | MY122486A (fr) |
| TW (1) | TW536692B (fr) |
| WO (1) | WO2000063886A1 (fr) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7447631B2 (en) * | 2002-06-17 | 2008-11-04 | Dolby Laboratories Licensing Corporation | Audio coding system using spectral hole filling |
| DE102004007200B3 (de) | 2004-02-13 | 2005-08-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiocodierung |
| DE102004007184B3 (de) * | 2004-02-13 | 2005-09-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zum Quantisieren eines Informationssignals |
| DE102004007191B3 (de) | 2004-02-13 | 2005-09-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiocodierung |
| CN101390158B (zh) * | 2006-02-24 | 2012-03-14 | 法国电信公司 | 量化索引的编码方法、解码信号包络方法、编解码模块 |
| DE102006022346B4 (de) | 2006-05-12 | 2008-02-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Informationssignalcodierung |
| JP5057590B2 (ja) * | 2006-07-24 | 2012-10-24 | マーベル ワールド トレード リミテッド | 回転式データストレージデバイス用の制御システムおよびデータストレージデバイス |
| US8571852B2 (en) * | 2007-03-02 | 2013-10-29 | Telefonaktiebolaget L M Ericsson (Publ) | Postfilter for layered codecs |
| US8831933B2 (en) | 2010-07-30 | 2014-09-09 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for multi-stage shape vector quantization |
| US9208792B2 (en) | 2010-08-17 | 2015-12-08 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for noise injection |
| KR101492105B1 (ko) * | 2011-08-29 | 2015-02-11 | 주식회사 아이벡스피티홀딩스 | Ａｍｖｐ 모드에서 영상 부호화 방법 |
| ES2643746T3 (es) * | 2012-12-13 | 2017-11-24 | Panasonic Intellectual Property Corporation Of America | Dispositivo de codificación de audio de voz, dispositivo de descodificación de audio de voz, método de codificación de audio de voz y método de descodificación de audio de voz |
| CN116366411B (zh) * | 2023-03-28 | 2024-03-08 | 扬州宇安电子科技有限公司 | 一种多比特信号量化自适应门限生成及量化方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5365553A (en) * | 1990-11-30 | 1994-11-15 | U.S. Philips Corporation | Transmitter, encoding system and method employing use of a bit need determiner for subband coding a digital signal |
| WO1995032499A1 (fr) * | 1994-05-25 | 1995-11-30 | Sony Corporation | Procede de codage, procede de decodage, procede de codage-decodage, codeur, decodeur et codeur-decodeur |
| JP3307138B2 (ja) * | 1995-02-27 | 2002-07-24 | ソニー株式会社 | 信号符号化方法及び装置、並びに信号復号化方法及び装置 |
| US5924064A (en) * | 1996-10-07 | 1999-07-13 | Picturetel Corporation | Variable length coding using a plurality of region bit allocation patterns |
| US6006179A (en) * | 1997-10-28 | 1999-12-21 | America Online, Inc. | Audio codec using adaptive sparse vector quantization with subband vector classification |
-
2000
- 2000-04-11 KR KR1020017013223A patent/KR100893281B1/ko active IP Right Grant
- 2000-04-11 EP EP00922036A patent/EP1175670B2/fr not_active Expired - Lifetime
- 2000-04-11 JP JP2000612930A patent/JP4843142B2/ja not_active Expired - Lifetime
- 2000-04-11 BR BRPI0010672A patent/BRPI0010672B1/pt active IP Right Grant
- 2000-04-11 AU AU42279/00A patent/AU771454B2/en not_active Expired
- 2000-04-11 MX MXPA01010447A patent/MXPA01010447A/es active IP Right Grant
- 2000-04-11 AT AT00922036T patent/ATE269574T1/de active
- 2000-04-11 DE DE60011606T patent/DE60011606T3/de not_active Expired - Lifetime
- 2000-04-11 WO PCT/US2000/009604 patent/WO2000063886A1/fr active IP Right Grant
- 2000-04-11 ES ES00922036T patent/ES2218148T5/es not_active Expired - Lifetime
- 2000-04-11 DK DK00922036T patent/DK1175670T4/da active
- 2000-04-11 CA CA002368453A patent/CA2368453C/fr not_active Expired - Lifetime
- 2000-04-11 AR ARP000101655A patent/AR023444A1/es active IP Right Grant
- 2000-04-11 TW TW089106701A patent/TW536692B/zh not_active IP Right Cessation
- 2000-04-11 CN CNB008063303A patent/CN1158646C/zh not_active Expired - Lifetime
- 2000-04-14 MY MYPI20001607A patent/MY122486A/en unknown
-
2002
- 2002-10-03 HK HK02107256.2A patent/HK1045747B/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1347549A (zh) | 2002-05-01 |
| HK1045747B (zh) | 2004-12-31 |
| DE60011606D1 (de) | 2004-07-22 |
| EP1175670A1 (fr) | 2002-01-30 |
| EP1175670B1 (fr) | 2004-06-16 |
| ES2218148T5 (es) | 2008-02-16 |
| DE60011606T3 (de) | 2008-01-24 |
| CA2368453A1 (fr) | 2000-10-26 |
| AR023444A1 (es) | 2002-09-04 |
| DE60011606T2 (de) | 2005-06-23 |
| KR20010112434A (ko) | 2001-12-20 |
| JP4843142B2 (ja) | 2011-12-21 |
| MXPA01010447A (es) | 2002-07-30 |
| TW536692B (en) | 2003-06-11 |
| WO2000063886A1 (fr) | 2000-10-26 |
| DK1175670T4 (da) | 2007-11-19 |
| AU771454B2 (en) | 2004-03-25 |
| KR100893281B1 (ko) | 2009-04-17 |
| JP2002542522A (ja) | 2002-12-10 |
| HK1045747A1 (en) | 2002-12-06 |
| ATE269574T1 (de) | 2004-07-15 |
| CN1158646C (zh) | 2004-07-21 |
| BR0010672A (pt) | 2002-02-19 |
| EP1175670B2 (fr) | 2007-09-19 |
| DK1175670T3 (da) | 2004-10-11 |
| AU4227900A (en) | 2000-11-02 |
| ES2218148T3 (es) | 2004-11-16 |
| BRPI0010672B1 (pt) | 2016-06-07 |
| MY122486A (en) | 2006-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6246345B1 (en) | Using gain-adaptive quantization and non-uniform symbol lengths for improved audio coding | |
| KR100991450B1 (ko) | 스펙트럼 홀 충전을 사용하는 오디오 코딩 시스템 | |
| EP1537562B1 (fr) | Codage audio a faible debit binaire | |
| US6308150B1 (en) | Dynamic bit allocation apparatus and method for audio coding | |
| CA2059141C (fr) | Codeur haute fidelite adaptatif a selection de longueur de bloc de transformation et de fenetre d'analyse | |
| EP2490215A2 (fr) | Procédé et appareil permettant d'extraire un composant spectral important à partir d'un signal audio et procédé de codage et/ou décodage de signal audio à faible débit binaire et appareil l'utilisant | |
| CA2368453C (fr) | Utilisation de quantification a gain adapte et de longueurs de symboles non uniformes pour codage audio | |
| JP2005338850A (ja) | デジタル信号の符号化方法及び装置ならびに復号化方法及び装置 | |
| US8149927B2 (en) | Method of and apparatus for encoding/decoding digital signal using linear quantization by sections | |
| KR100738109B1 (ko) | 입력 신호의 양자화 및 역양자화 방법과 장치, 입력신호의부호화 및 복호화 방법과 장치 | |
| JP3353868B2 (ja) | 音響信号変換符号化方法および復号化方法 | |
| JPH08307281A (ja) | 非線形量子化方法及び非線形逆量子化方法 | |
| JPH0750589A (ja) | サブバンド符号化装置 | |
| KR970006827B1 (ko) | 오디오신호 부호화장치 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20200411 |