CN109509478B - 音频处理装置 - Google Patents

音频处理装置 Download PDF

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Publication number
CN109509478B
CN109509478B CN201910045920.8A CN201910045920A CN109509478B CN 109509478 B CN109509478 B CN 109509478B CN 201910045920 A CN201910045920 A CN 201910045920A CN 109509478 B CN109509478 B CN 109509478B
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signal
mode
audio
parametric
domain representation
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CN109509478A (zh
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K·克约尔林
H·普恩哈根
L·维尔莫斯
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Dolby International AB
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    • 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
    • G10L19/02—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
    • G10L19/04—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
    • 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
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
CN201910045920.8A 2013-04-05 2014-04-04 音频处理装置 Active CN109509478B (zh)

Priority Applications (1)

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US201361809019P 2013-04-05 2013-04-05
US61/809,019 2013-04-05
US201361875959P 2013-09-10 2013-09-10
US61/875,959 2013-09-10
PCT/EP2014/056857 WO2014161996A2 (en) 2013-04-05 2014-04-04 Audio processing system
CN201910045920.8A CN109509478B (zh) 2013-04-05 2014-04-04 音频处理装置
CN201480024625.XA CN105247613B (zh) 2013-04-05 2014-04-04 音频处理系统

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CN109509478A CN109509478A (zh) 2019-03-22
CN109509478B true CN109509478B (zh) 2023-09-05

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CN201480024625.XA Active CN105247613B (zh) 2013-04-05 2014-04-04 音频处理系统

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US (2) US9478224B2 (https=)
EP (1) EP2981956B1 (https=)
JP (2) JP6013646B2 (https=)
KR (1) KR101717006B1 (https=)
CN (2) CN109509478B (https=)
BR (1) BR112015025092B1 (https=)
ES (1) ES2934646T3 (https=)
IN (1) IN2015MN02784A (https=)
RU (1) RU2625444C2 (https=)
WO (1) WO2014161996A2 (https=)

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JP6013646B2 (ja) 2016-10-25
US9812136B2 (en) 2017-11-07
BR112015025092B1 (pt) 2022-01-11
EP2981956A2 (en) 2016-02-10
US9478224B2 (en) 2016-10-25
WO2014161996A3 (en) 2014-12-04
KR101717006B1 (ko) 2017-03-15
KR20150139601A (ko) 2015-12-11
US20160055855A1 (en) 2016-02-25
IN2015MN02784A (https=) 2015-10-23
JP2016514858A (ja) 2016-05-23
CN105247613A (zh) 2016-01-13
RU2625444C2 (ru) 2017-07-13
JP6407928B2 (ja) 2018-10-17
CN109509478A (zh) 2019-03-22
BR112015025092A2 (pt) 2017-07-18
RU2015147158A (ru) 2017-05-17
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US20160372123A1 (en) 2016-12-22
CN105247613B (zh) 2019-01-18

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