WO2007008012A3 - Apparatus and method of processing an audio signal - Google Patents
Apparatus and method of processing an audio signal Download PDFInfo
- Publication number
- WO2007008012A3 WO2007008012A3 PCT/KR2006/002690 KR2006002690W WO2007008012A3 WO 2007008012 A3 WO2007008012 A3 WO 2007008012A3 KR 2006002690 W KR2006002690 W KR 2006002690W WO 2007008012 A3 WO2007008012 A3 WO 2007008012A3
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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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
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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
- G10L19/0212—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 orthogonal transformation
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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
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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
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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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
- G10L19/04—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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/007—Two-channel systems in which the audio signals are in digital form
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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
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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
- G10L19/02—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
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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
- G10L19/04—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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
Abstract
In one embodiment, a block of audio data is partitioned into N sub-blocks, and a plurality of code parameters s(0), s(1) , ... s (N-1) are determined. The N sub-blocks are entropy encoded using a plurality of entropy codes defined by the plurality of code parameters, and the code parameters are transmitted. The code parameters may be transmitted by directly transmitting s(0) representing the code parameter of the first sub-block, and transmitting a difference s(i)-s(i-l) for i=l,... N-I7 s(i) representing the code parameter of an ±th sub-block following the first sub-block.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06769226A EP1913588A4 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
CNA2006800305412A CN101243497A (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of coding and decoding an audio signal |
JP2008521318A JP2009500692A (en) | 2005-07-11 | 2006-07-10 | Audio signal processing apparatus and method |
CNA2006800289829A CN101238510A (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
Applications Claiming Priority (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69755105P | 2005-07-11 | 2005-07-11 | |
US60/697,551 | 2005-07-11 | ||
PCT/KR2005/002290 WO2007011078A1 (en) | 2005-07-16 | 2005-07-16 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2005/002292 WO2007011080A1 (en) | 2005-07-16 | 2005-07-16 | Apparatus and method of encoding and decoding audio signal |
KRPCT/KR2005/002292 | 2005-07-16 | ||
PCT/KR2005/002291 WO2007011079A1 (en) | 2005-07-16 | 2005-07-16 | Apparatus and method of encoding and decoding audio signal |
KRPCT/KR2005/002290 | 2005-07-16 | ||
KRPCT/KR2005/002291 | 2005-07-16 | ||
KRPCT/KR2005/002306 | 2005-07-18 | ||
PCT/KR2005/002308 WO2007011085A1 (en) | 2005-07-18 | 2005-07-18 | Apparatus and method of encoding and decoding audio signal |
KRPCT/KR2005/002308 | 2005-07-18 | ||
PCT/KR2005/002307 WO2007011084A1 (en) | 2005-07-18 | 2005-07-18 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2005/002306 WO2007011083A1 (en) | 2005-07-18 | 2005-07-18 | Apparatus and method of encoding and decoding audio signal |
KRPCT/KR2005/002307 | 2005-07-18 | ||
US70057005P | 2005-07-19 | 2005-07-19 | |
US60/700,570 | 2005-07-19 |
Publications (2)
Publication Number | Publication Date |
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WO2007008012A2 WO2007008012A2 (en) | 2007-01-18 |
WO2007008012A3 true WO2007008012A3 (en) | 2007-03-08 |
Family
ID=37637332
Family Applications (14)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2006/002681 WO2007008003A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002687 WO2007008009A1 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002689 WO2007008011A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002686 WO2007008008A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002683 WO2007008005A1 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002680 WO2007008002A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002690 WO2007008012A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002678 WO2007008000A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002688 WO2007008010A1 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002685 WO2007008007A1 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002679 WO2007008001A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002691 WO2007008013A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002682 WO2007008004A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002677 WO2007007999A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
Family Applications Before (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2006/002681 WO2007008003A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002687 WO2007008009A1 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002689 WO2007008011A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002686 WO2007008008A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002683 WO2007008005A1 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002680 WO2007008002A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
Family Applications After (7)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2006/002678 WO2007008000A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002688 WO2007008010A1 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002685 WO2007008007A1 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of processing an audio signal |
PCT/KR2006/002679 WO2007008001A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002691 WO2007008013A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002682 WO2007008004A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
PCT/KR2006/002677 WO2007007999A2 (en) | 2005-07-11 | 2006-07-10 | Apparatus and method of encoding and decoding audio signal |
Country Status (5)
Country | Link |
---|---|
US (36) | US8108219B2 (en) |
EP (14) | EP1908058A4 (en) |
JP (14) | JP2009500681A (en) |
CN (14) | CN101218629A (en) |
WO (14) | WO2007008003A2 (en) |
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