WO2005086139A1 - Multichannel audio coding - Google Patents
Multichannel audio coding Download PDFInfo
- Publication number
- WO2005086139A1 WO2005086139A1 PCT/US2005/006359 US2005006359W WO2005086139A1 WO 2005086139 A1 WO2005086139 A1 WO 2005086139A1 US 2005006359 W US2005006359 W US 2005006359W WO 2005086139 A1 WO2005086139 A1 WO 2005086139A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- audio
- angle
- shifting
- channels
- subband
- Prior art date
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Stereo-Broadcasting Methods (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (29)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0508343A BRPI0508343B1 (en) | 2004-03-01 | 2005-02-28 | method for decoding m encoded audio channels representing n audio channels and method for encoding n input audio channels into m encoded audio channels. |
KR1020067015754A KR101079066B1 (en) | 2004-03-01 | 2005-02-28 | Multichannel audio coding |
CA2556575A CA2556575C (en) | 2004-03-01 | 2005-02-28 | Multichannel audio coding |
AU2005219956A AU2005219956B2 (en) | 2004-03-01 | 2005-02-28 | Multichannel audio coding |
US10/591,374 US8983834B2 (en) | 2004-03-01 | 2005-02-28 | Multichannel audio coding |
EP05724000A EP1721312B1 (en) | 2004-03-01 | 2005-02-28 | Multichannel audio coding |
JP2007501875A JP4867914B2 (en) | 2004-03-01 | 2005-02-28 | Multi-channel audio coding |
CN2005800067833A CN1926607B (en) | 2004-03-01 | 2005-02-28 | Multichannel audio coding |
DE602005005640T DE602005005640T2 (en) | 2004-03-01 | 2005-02-28 | MULTI-CHANNEL AUDIOCODING |
IL177094A IL177094A (en) | 2004-03-01 | 2006-07-25 | Multichannel audio coding |
HK06113017A HK1092580A1 (en) | 2004-03-01 | 2006-11-28 | Multichannel audio coding |
US11/888,657 US8170882B2 (en) | 2004-03-01 | 2007-07-31 | Multichannel audio coding |
US12/283,712 US20090299756A1 (en) | 2004-03-01 | 2008-09-12 | Ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners |
US14/614,672 US9311922B2 (en) | 2004-03-01 | 2015-02-05 | Method, apparatus, and storage medium for decoding encoded audio channels |
US15/060,382 US9454969B2 (en) | 2004-03-01 | 2016-03-03 | Multichannel audio coding |
US15/060,425 US9520135B2 (en) | 2004-03-01 | 2016-03-03 | Reconstructing audio signals with multiple decorrelation techniques |
US15/344,137 US9640188B2 (en) | 2004-03-01 | 2016-11-04 | Reconstructing audio signals with multiple decorrelation techniques |
US15/422,107 US9715882B2 (en) | 2004-03-01 | 2017-02-01 | Reconstructing audio signals with multiple decorrelation techniques |
US15/422,132 US9672839B1 (en) | 2004-03-01 | 2017-02-01 | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
US15/422,119 US9691404B2 (en) | 2004-03-01 | 2017-02-01 | Reconstructing audio signals with multiple decorrelation techniques |
US15/446,693 US9704499B1 (en) | 2004-03-01 | 2017-03-01 | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
US15/446,699 US9779745B2 (en) | 2004-03-01 | 2017-03-01 | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
US15/446,678 US9691405B1 (en) | 2004-03-01 | 2017-03-01 | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
US15/446,663 US9697842B1 (en) | 2004-03-01 | 2017-03-01 | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
US15/691,309 US10269364B2 (en) | 2004-03-01 | 2017-08-30 | Reconstructing audio signals with multiple decorrelation techniques |
US16/226,252 US10460740B2 (en) | 2004-03-01 | 2018-12-19 | Methods and apparatus for adjusting a level of an audio signal |
US16/226,289 US10403297B2 (en) | 2004-03-01 | 2018-12-19 | Methods and apparatus for adjusting a level of an audio signal |
US16/666,276 US10796706B2 (en) | 2004-03-01 | 2019-10-28 | Methods and apparatus for reconstructing audio signals with decorrelation and differentially coded parameters |
US17/063,137 US11308969B2 (en) | 2004-03-01 | 2020-10-05 | Methods and apparatus for reconstructing audio signals with decorrelation and differentially coded parameters |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54936804P | 2004-03-01 | 2004-03-01 | |
US60/549,368 | 2004-03-01 | ||
US57997404P | 2004-06-14 | 2004-06-14 | |
US60/579,974 | 2004-06-14 | ||
US58825604P | 2004-07-14 | 2004-07-14 | |
US60/588,256 | 2004-07-14 |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/591,374 A-371-Of-International US8983834B2 (en) | 2004-03-01 | 2005-02-28 | Multichannel audio coding |
PCT/US2007/007054 Continuation-In-Part WO2007109338A1 (en) | 2004-03-01 | 2007-03-21 | Low bit rate audio encoding and decoding |
US11/888,657 Continuation US8170882B2 (en) | 2004-03-01 | 2007-07-31 | Multichannel audio coding |
US14/614,672 Continuation US9311922B2 (en) | 2004-03-01 | 2015-02-05 | Method, apparatus, and storage medium for decoding encoded audio channels |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005086139A1 true WO2005086139A1 (en) | 2005-09-15 |
Family
ID=34923263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/006359 WO2005086139A1 (en) | 2004-03-01 | 2005-02-28 | Multichannel audio coding |
Country Status (17)
Country | Link |
---|---|
US (18) | US8983834B2 (en) |
EP (4) | EP1721312B1 (en) |
JP (1) | JP4867914B2 (en) |
KR (1) | KR101079066B1 (en) |
CN (3) | CN1926607B (en) |
AT (4) | ATE527654T1 (en) |
AU (2) | AU2005219956B2 (en) |
BR (1) | BRPI0508343B1 (en) |
CA (11) | CA3026267C (en) |
DE (3) | DE602005005640T2 (en) |
ES (1) | ES2324926T3 (en) |
HK (4) | HK1092580A1 (en) |
IL (1) | IL177094A (en) |
MY (1) | MY145083A (en) |
SG (3) | SG10201605609PA (en) |
TW (3) | TWI397902B (en) |
WO (1) | WO2005086139A1 (en) |
Cited By (63)
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WO2006008697A1 (en) * | 2004-07-14 | 2006-01-26 | Koninklijke Philips Electronics N.V. | Audio channel conversion |
WO2006019719A1 (en) * | 2004-08-03 | 2006-02-23 | Dolby Laboratories Licensing Corporation | Combining audio signals using auditory scene analysis |
WO2006048203A1 (en) * | 2004-11-02 | 2006-05-11 | Coding Technologies Ab | Methods for improved performance of prediction based multi-channel reconstruction |
WO2006108456A1 (en) * | 2005-04-15 | 2006-10-19 | 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 |
JP2007202021A (en) * | 2006-01-30 | 2007-08-09 | Sony Corp | Audio signal processing apparatus, audio signal processing system, and program |
WO2007109338A1 (en) * | 2006-03-21 | 2007-09-27 | Dolby Laboratories Licensing Corporation | Low bit rate audio encoding and decoding |
US7283954B2 (en) | 2001-04-13 | 2007-10-16 | Dolby Laboratories Licensing Corporation | Comparing audio using characterizations based on auditory events |
WO2008044901A1 (en) * | 2006-10-12 | 2008-04-17 | Lg Electronics Inc., | Apparatus for processing a mix signal and method thereof |
WO2008069595A1 (en) * | 2006-12-07 | 2008-06-12 | Lg Electronics Inc. | A method and an apparatus for processing an audio signal |
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US7461002B2 (en) | 2001-04-13 | 2008-12-02 | Dolby Laboratories Licensing Corporation | Method for time aligning audio signals using characterizations based on auditory events |
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JP2009511966A (en) * | 2005-10-12 | 2009-03-19 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | Temporal and spatial shaping of multichannel audio signals |
JP2009520213A (en) * | 2005-10-05 | 2009-05-21 | エルジー エレクトロニクス インコーポレイティド | Signal processing method and apparatus, encoding and decoding method, and apparatus therefor |
JP2009531724A (en) * | 2006-03-28 | 2009-09-03 | 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 | An improved method for signal shaping in multi-channel audio reconstruction |
JP2009533912A (en) * | 2006-04-13 | 2009-09-17 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | Audio signal correlation separator, multi-channel audio signal processor, audio signal processor, method and computer program for deriving output audio signal from input audio signal |
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