HK1199539A1 - Audio signal coding method, audio signal decoding method, audio signal coding apparatus, and audio signal decoding apparatus - Google Patents

Audio signal coding method, audio signal decoding method, audio signal coding apparatus, and audio signal decoding apparatus

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Publication number
HK1199539A1
HK1199539A1 HK14113070.0A HK14113070A HK1199539A1 HK 1199539 A1 HK1199539 A1 HK 1199539A1 HK 14113070 A HK14113070 A HK 14113070A HK 1199539 A1 HK1199539 A1 HK 1199539A1
Authority
HK
Hong Kong
Prior art keywords
audio signal
signal decoding
signal coding
coding
decoding
Prior art date
Application number
HK14113070.0A
Other languages
English (en)
Chinese (zh)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of HK1199539A1 publication Critical patent/HK1199539A1/xx

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G10L21/0388—Details of processing therefor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • 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
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
HK14113070.0A 2013-01-11 2014-12-30 Audio signal coding method, audio signal decoding method, audio signal coding apparatus, and audio signal decoding apparatus HK1199539A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310010936.8A CN103928029B (zh) 2013-01-11 2013-01-11 音频信号编码和解码方法、音频信号编码和解码装置

Publications (1)

Publication Number Publication Date
HK1199539A1 true HK1199539A1 (en) 2015-07-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
HK14113070.0A HK1199539A1 (en) 2013-01-11 2014-12-30 Audio signal coding method, audio signal decoding method, audio signal coding apparatus, and audio signal decoding apparatus

Country Status (9)

Country Link
US (3) US9805736B2 (ja)
EP (2) EP2899721B1 (ja)
JP (2) JP6125031B2 (ja)
KR (2) KR101736394B1 (ja)
CN (2) CN105976830B (ja)
BR (1) BR112015014956B1 (ja)
HK (1) HK1199539A1 (ja)
SG (1) SG11201503286UA (ja)
WO (1) WO2014107950A1 (ja)

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Also Published As

Publication number Publication date
US20150235653A1 (en) 2015-08-20
EP2899721B1 (en) 2018-09-12
KR20150070398A (ko) 2015-06-24
KR101736394B1 (ko) 2017-05-16
US20180018989A1 (en) 2018-01-18
BR112015014956A2 (pt) 2017-07-11
JP6125031B2 (ja) 2017-05-10
EP3467826A1 (en) 2019-04-10
SG11201503286UA (en) 2015-06-29
JP2016505873A (ja) 2016-02-25
EP2899721A1 (en) 2015-07-29
US9805736B2 (en) 2017-10-31
WO2014107950A1 (zh) 2014-07-17
KR20170054580A (ko) 2017-05-17
CN103928029A (zh) 2014-07-16
CN105976830A (zh) 2016-09-28
JP2017138616A (ja) 2017-08-10
BR112015014956A8 (pt) 2019-10-15
CN103928029B (zh) 2017-02-08
BR112015014956B1 (pt) 2021-11-30
CN105976830B (zh) 2019-09-20
US10373629B2 (en) 2019-08-06
JP6364518B2 (ja) 2018-07-25
EP2899721A4 (en) 2015-12-09
US20190355378A1 (en) 2019-11-21

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