ATE518313T1 - Optimierte verlässlichkeit und reduzierte signalgebung in der mulitkanal-audiokodierung - Google Patents
Optimierte verlässlichkeit und reduzierte signalgebung in der mulitkanal-audiokodierungInfo
- Publication number
- ATE518313T1 ATE518313T1 AT06716925T AT06716925T ATE518313T1 AT E518313 T1 ATE518313 T1 AT E518313T1 AT 06716925 T AT06716925 T AT 06716925T AT 06716925 T AT06716925 T AT 06716925T AT E518313 T1 ATE518313 T1 AT E518313T1
- Authority
- AT
- Austria
- Prior art keywords
- filter
- encoding process
- channel audio
- audio coding
- coding
- Prior art date
Links
- 230000011664 signaling Effects 0.000 title 1
- 238000000034 method Methods 0.000 abstract 4
- 238000009499 grossing Methods 0.000 abstract 3
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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
-
- 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- 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
- G10L19/26—Pre-filtering or post-filtering
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65495605P | 2005-02-23 | 2005-02-23 | |
| PCT/SE2005/002033 WO2006091139A1 (en) | 2005-02-23 | 2005-12-22 | Adaptive bit allocation for multi-channel audio encoding |
| PCT/SE2006/000235 WO2006091151A1 (en) | 2005-02-23 | 2006-02-22 | Optimized fidelity and reduced signaling in multi-channel audio encoding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE518313T1 true ATE518313T1 (de) | 2011-08-15 |
Family
ID=36927684
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT05822014T ATE521143T1 (de) | 2005-02-23 | 2005-12-22 | Adaptive bitzuweisung für die mehrkanal- audiokodierung |
| AT06716925T ATE518313T1 (de) | 2005-02-23 | 2006-02-22 | Optimierte verlässlichkeit und reduzierte signalgebung in der mulitkanal-audiokodierung |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT05822014T ATE521143T1 (de) | 2005-02-23 | 2005-12-22 | Adaptive bitzuweisung für die mehrkanal- audiokodierung |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US7945055B2 (de) |
| EP (1) | EP1851866B1 (de) |
| JP (2) | JP4809370B2 (de) |
| CN (3) | CN101124740B (de) |
| AT (2) | ATE521143T1 (de) |
| ES (1) | ES2389499T3 (de) |
| WO (1) | WO2006091139A1 (de) |
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| EP1691348A1 (de) * | 2005-02-14 | 2006-08-16 | Ecole Polytechnique Federale De Lausanne | Parametrische kombinierte Kodierung von Audio-Quellen |
| US9626973B2 (en) * | 2005-02-23 | 2017-04-18 | Telefonaktiebolaget L M Ericsson (Publ) | Adaptive bit allocation for multi-channel audio encoding |
| US7983922B2 (en) * | 2005-04-15 | 2011-07-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing |
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| CN100481734C (zh) * | 2002-08-21 | 2009-04-22 | 广州广晟数码技术有限公司 | 用于从音频数据码流中解码重建多声道音频信号的解码器 |
| JP4022111B2 (ja) * | 2002-08-23 | 2007-12-12 | 株式会社エヌ・ティ・ティ・ドコモ | 信号符号化装置及び信号符号化方法 |
| JP4373693B2 (ja) * | 2003-03-28 | 2009-11-25 | パナソニック株式会社 | 音響信号の階層符号化方法および階層復号化方法 |
| CN100546233C (zh) | 2003-04-30 | 2009-09-30 | 诺基亚公司 | 用于支持多声道音频扩展的方法和设备 |
| DE10328777A1 (de) | 2003-06-25 | 2005-01-27 | Coding Technologies Ab | Vorrichtung und Verfahren zum Codieren eines Audiosignals und Vorrichtung und Verfahren zum Decodieren eines codierten Audiosignals |
| CN1212608C (zh) * | 2003-09-12 | 2005-07-27 | 中国科学院声学研究所 | 一种采用后置滤波器的多通道语音增强方法 |
| US7725324B2 (en) | 2003-12-19 | 2010-05-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Constrained filter encoding of polyphonic signals |
| US7460990B2 (en) * | 2004-01-23 | 2008-12-02 | Microsoft Corporation | Efficient coding of digital media spectral data using wide-sense perceptual similarity |
| US8843378B2 (en) | 2004-06-30 | 2014-09-23 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Multi-channel synthesizer and method for generating a multi-channel output signal |
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2005
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- 2005-12-22 EP EP05822014A patent/EP1851866B1/de not_active Not-in-force
- 2005-12-22 JP JP2007552087A patent/JP4809370B2/ja not_active Expired - Fee Related
- 2005-12-22 WO PCT/SE2005/002033 patent/WO2006091139A1/en active Application Filing
- 2005-12-22 CN CN2005800485035A patent/CN101124740B/zh not_active Expired - Fee Related
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2006
- 2006-02-22 US US11/358,720 patent/US7945055B2/en active Active
- 2006-02-22 AT AT06716925T patent/ATE518313T1/de not_active IP Right Cessation
- 2006-02-22 CN CN2006800056513A patent/CN101128867B/zh active Active
- 2006-02-22 ES ES06716924T patent/ES2389499T3/es active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2008529056A (ja) | 2008-07-31 |
| EP1851866A1 (de) | 2007-11-07 |
| US7945055B2 (en) | 2011-05-17 |
| ES2389499T3 (es) | 2012-10-26 |
| JP4809370B2 (ja) | 2011-11-09 |
| CN101128867B (zh) | 2012-06-20 |
| EP1851866A4 (de) | 2010-05-19 |
| US7822617B2 (en) | 2010-10-26 |
| JP5171269B2 (ja) | 2013-03-27 |
| CN101124740B (zh) | 2012-05-30 |
| CN101128867A (zh) | 2008-02-20 |
| US20060195314A1 (en) | 2006-08-31 |
| ATE521143T1 (de) | 2011-09-15 |
| US20060246868A1 (en) | 2006-11-02 |
| CN101128866A (zh) | 2008-02-20 |
| EP1851866B1 (de) | 2011-08-17 |
| JP2008532064A (ja) | 2008-08-14 |
| WO2006091139A1 (en) | 2006-08-31 |
| CN101124740A (zh) | 2008-02-13 |
| CN101128866B (zh) | 2011-09-21 |
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