CN101031961B - 对编码信号进行处理的方法和装置 - Google Patents
对编码信号进行处理的方法和装置 Download PDFInfo
- Publication number
- CN101031961B CN101031961B CN2005800332773A CN200580033277A CN101031961B CN 101031961 B CN101031961 B CN 101031961B CN 2005800332773 A CN2005800332773 A CN 2005800332773A CN 200580033277 A CN200580033277 A CN 200580033277A CN 101031961 B CN101031961 B CN 101031961B
- Authority
- CN
- China
- Prior art keywords
- signal
- window sequence
- coding
- sound signal
- audio
- 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 - Fee Related
Links
- 238000012545 processing Methods 0.000 title description 8
- 238000000034 method Methods 0.000 claims abstract description 57
- 230000003595 spectral effect Effects 0.000 claims abstract description 24
- 230000005236 sound signal Effects 0.000 claims description 59
- 238000013139 quantization Methods 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 18
- 238000001228 spectrum Methods 0.000 claims description 18
- 230000009466 transformation Effects 0.000 claims description 10
- 230000004048 modification Effects 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 7
- 238000010295 mobile communication Methods 0.000 claims description 5
- 238000007906 compression Methods 0.000 description 25
- 230000008859 change Effects 0.000 description 23
- 230000006835 compression Effects 0.000 description 23
- 230000000694 effects Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000001052 transient effect Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011002 quantification Methods 0.000 description 3
- 238000013144 data compression Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- 241001417524 Pomacanthidae Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
Images
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
- G10L19/0204—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)
Abstract
Description
Claims (14)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/928,620 US8423372B2 (en) | 2004-08-26 | 2004-08-26 | Processing of encoded signals |
US10/928,620 | 2004-08-26 | ||
PCT/IB2005/002489 WO2006021862A1 (en) | 2004-08-26 | 2005-08-02 | Processing of encoded signals |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101031961A CN101031961A (zh) | 2007-09-05 |
CN101031961B true CN101031961B (zh) | 2012-06-06 |
Family
ID=35427869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005800332773A Expired - Fee Related CN101031961B (zh) | 2004-08-26 | 2005-08-02 | 对编码信号进行处理的方法和装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8423372B2 (zh) |
EP (1) | EP1782418B1 (zh) |
KR (2) | KR100945219B1 (zh) |
CN (1) | CN101031961B (zh) |
HK (1) | HK1105476A1 (zh) |
TW (1) | TWI390502B (zh) |
WO (1) | WO2006021862A1 (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI374671B (en) * | 2007-07-31 | 2012-10-11 | Realtek Semiconductor Corp | Audio encoding method with function of accelerating a quantization iterative loop process |
JP5302980B2 (ja) * | 2008-03-04 | 2013-10-02 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | 複数の入力データストリームのミキシングのための装置 |
ES2401487T3 (es) * | 2008-07-11 | 2013-04-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Aparato y procedimiento para la codificación/decodificación de una señal de audio utilizando un esquema de conmutación de generación de señal ajena |
EP2144231A1 (en) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Low bitrate audio encoding/decoding scheme with common preprocessing |
KR101622950B1 (ko) * | 2009-01-28 | 2016-05-23 | 삼성전자주식회사 | 오디오 신호의 부호화 및 복호화 방법 및 그 장치 |
US9031850B2 (en) * | 2009-08-20 | 2015-05-12 | Gvbb Holdings S.A.R.L. | Audio stream combining apparatus, method and program |
RU2559899C2 (ru) | 2010-04-09 | 2015-08-20 | Долби Интернешнл Аб | Стереофоническое кодирование на основе mdct с комплексным предсказанием |
US9164724B2 (en) * | 2011-08-26 | 2015-10-20 | Dts Llc | Audio adjustment system |
GB2512899B (en) | 2013-04-10 | 2015-06-03 | Openwave Mobility Inc | A method, apparatus and computer program for adding content to a data container |
US9984693B2 (en) * | 2014-10-10 | 2018-05-29 | Qualcomm Incorporated | Signaling channels for scalable coding of higher order ambisonic audio data |
US10140996B2 (en) | 2014-10-10 | 2018-11-27 | Qualcomm Incorporated | Signaling layers for scalable coding of higher order ambisonic audio data |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1250293A (zh) * | 1998-08-10 | 2000-04-12 | 扬智科技股份有限公司 | 压缩多声道音频位元流的解码装置及方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG54379A1 (en) * | 1996-10-24 | 1998-11-16 | Sgs Thomson Microelectronics A | Audio decoder with an adaptive frequency domain downmixer |
SG54383A1 (en) * | 1996-10-31 | 1998-11-16 | Sgs Thomson Microelectronics A | Method and apparatus for decoding multi-channel audio data |
US6141645A (en) * | 1998-05-29 | 2000-10-31 | Acer Laboratories Inc. | Method and device for down mixing compressed audio bit stream having multiple audio channels |
JP3430968B2 (ja) * | 1999-05-06 | 2003-07-28 | ヤマハ株式会社 | ディジタル信号の時間軸圧伸方法及び装置 |
US6725110B2 (en) * | 2000-05-26 | 2004-04-20 | Yamaha Corporation | Digital audio decoder |
US6718309B1 (en) | 2000-07-26 | 2004-04-06 | Ssi Corporation | Continuously variable time scale modification of digital audio signals |
US7233832B2 (en) * | 2003-04-04 | 2007-06-19 | Apple Inc. | Method and apparatus for expanding audio data |
-
2004
- 2004-08-26 US US10/928,620 patent/US8423372B2/en active Active
-
2005
- 2005-08-02 WO PCT/IB2005/002489 patent/WO2006021862A1/en active Application Filing
- 2005-08-02 EP EP05769688.2A patent/EP1782418B1/en active Active
- 2005-08-02 CN CN2005800332773A patent/CN101031961B/zh not_active Expired - Fee Related
- 2005-08-02 KR KR1020077006635A patent/KR100945219B1/ko active IP Right Grant
- 2005-08-02 KR KR1020097001935A patent/KR100899141B1/ko active IP Right Grant
- 2005-08-23 TW TW094128690A patent/TWI390502B/zh not_active IP Right Cessation
-
2007
- 2007-12-18 HK HK07113735.6A patent/HK1105476A1/xx not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1250293A (zh) * | 1998-08-10 | 2000-04-12 | 扬智科技股份有限公司 | 压缩多声道音频位元流的解码装置及方法 |
Non-Patent Citations (2)
Title |
---|
M.Alexander broadhead et.al.Direct Manipulation of MPEG Compressed Digital Audio.《International Multimedia Conference Proceedings of the third ACM international conference on Multimedia》.1995,499-507. * |
Patrick De Smet et.al.SUBBAND BASED MPEG AUDIO MIXING FOR INTERNET STREAMING APPLICATIONS.《IEEE International Conference on Acoustics,Speech,and Signal Processing》.2001,第3卷1393-1396. * |
Also Published As
Publication number | Publication date |
---|---|
EP1782418B1 (en) | 2019-03-06 |
TW200623027A (en) | 2006-07-01 |
EP1782418A1 (en) | 2007-05-09 |
US8423372B2 (en) | 2013-04-16 |
TWI390502B (zh) | 2013-03-21 |
KR20090018873A (ko) | 2009-02-23 |
KR20070051920A (ko) | 2007-05-18 |
CN101031961A (zh) | 2007-09-05 |
WO2006021862A1 (en) | 2006-03-02 |
US20060047523A1 (en) | 2006-03-02 |
KR100945219B1 (ko) | 2010-03-03 |
KR100899141B1 (ko) | 2009-05-27 |
HK1105476A1 (en) | 2008-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101031961B (zh) | 对编码信号进行处理的方法和装置 | |
CN1748443B (zh) | 多声道音频扩展支持 | |
US8116486B2 (en) | Mixing of input data streams and generation of an output data stream therefrom | |
KR100954179B1 (ko) | 근접-투명 또는 투명 멀티-채널 인코더/디코더 구성 | |
US7275036B2 (en) | Apparatus and method for coding a time-discrete audio signal to obtain coded audio data and for decoding coded audio data | |
JP4081447B2 (ja) | 時間離散オーディオ信号を符号化する装置と方法および符号化されたオーディオデータを復号化する装置と方法 | |
US20100274555A1 (en) | Audio Coding Apparatus and Method Thereof | |
CN102460570A (zh) | 用于对音频信号进行编码和解码的方法及设备 | |
CN107925388A (zh) | 用于增强瞬时处理的后置处理器、预处理器、音频编码器、音频解码器及相关方法 | |
WO2006000842A1 (en) | Multichannel audio extension | |
Gayer et al. | A guideline to audio codec delay | |
US8352249B2 (en) | Encoding device, decoding device, and method thereof | |
KR19990041073A (ko) | 비트율 조절이 가능한 오디오 부호화/복호화 방법 및 장치 | |
TW200836492A (en) | Device and method for postprocessing spectral values and encoder and decoder for audio signals | |
CN104838442A (zh) | 用于反向兼容多重分辨率空间音频对象编码的编码器、译码器及方法 | |
Britanak et al. | Cosine-/Sine-Modulated Filter Banks | |
Sinha et al. | A Novel Integrated Audio Bandwidth Extension Toolkit (ABET) | |
Watson et al. | Design and implementation of AAC decoders | |
KR20090016343A (ko) | Hht를 이용한 음성 및 오디오 신호의 부호화/복호화장치 및 방법 | |
Britanak et al. | Audio coding standards,(Proprietary) audio compression algorithms, and broadcasting/speech/data communication codecs: overview of adopted filter banks | |
Geiger et al. | Structural analysis of low latency audio coding schemes | |
CN102568489B (zh) | 编码器 | |
Edler et al. | Detection and extraction of transients for audio coding | |
Bang et al. | A dual audio transcoding algorithm for digital multimedia broadcasting services | |
Kunz et al. | An Overview of MPEG-4 Audio |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1105476 Country of ref document: HK |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SISVEL INTERNATIONAL S.A. Free format text: FORMER OWNER: NOKIA CORPORATION Effective date: 20120918 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20120918 Address after: Luxemburg Luxemburg Patentee after: Sisvel International S.A. Address before: Espoo, Finland Patentee before: NOKIA Corp. |
|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1105476 Country of ref document: HK |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20210802 |
|
CF01 | Termination of patent right due to non-payment of annual fee |