CN105917406B - 音频信号的参数化重构 - Google Patents

音频信号的参数化重构 Download PDF

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Publication number
CN105917406B
CN105917406B CN201480057568.5A CN201480057568A CN105917406B CN 105917406 B CN105917406 B CN 105917406B CN 201480057568 A CN201480057568 A CN 201480057568A CN 105917406 B CN105917406 B CN 105917406B
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signal
matrix
downmix
dry
upmix
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CN105917406A (zh
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L·维勒莫斯
H-M·莱托恩
H·普恩哈根
T·赫冯恩
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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
    • G10L19/04—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
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/0212—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
    • 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
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

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  • 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)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
CN201480057568.5A 2013-10-21 2014-10-21 音频信号的参数化重构 Active CN105917406B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010024100.3A CN111192592B (zh) 2013-10-21 2014-10-21 音频信号的参数化重构
CN202010024095.6A CN111179956B (zh) 2013-10-21 2014-10-21 音频信号的参数化重构

Applications Claiming Priority (7)

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US201361893770P 2013-10-21 2013-10-21
US61/893,770 2013-10-21
US201461974544P 2014-04-03 2014-04-03
US61/974,544 2014-04-03
US201462037693P 2014-08-15 2014-08-15
US62/037,693 2014-08-15
PCT/EP2014/072570 WO2015059153A1 (en) 2013-10-21 2014-10-21 Parametric reconstruction of audio signals

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CN202010024095.6A Division CN111179956B (zh) 2013-10-21 2014-10-21 音频信号的参数化重构
CN202010024100.3A Division CN111192592B (zh) 2013-10-21 2014-10-21 音频信号的参数化重构

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CN (3) CN105917406B (https=)
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US11450330B2 (en) 2022-09-20
KR102244379B1 (ko) 2021-04-26
US12175990B2 (en) 2024-12-24
CN105917406A (zh) 2016-08-31
KR20160099531A (ko) 2016-08-22
US20160247514A1 (en) 2016-08-25
US20240087584A1 (en) 2024-03-14
JP6479786B2 (ja) 2019-03-06
KR20230011480A (ko) 2023-01-20
EP3061089B1 (en) 2018-01-17
KR102486365B1 (ko) 2023-01-09
CN111179956B (zh) 2023-08-11
US20190325885A1 (en) 2019-10-24
CN111192592A (zh) 2020-05-22
KR102741608B1 (ko) 2024-12-16
RU2648947C2 (ru) 2018-03-28
CN111179956A (zh) 2020-05-19
BR112016008817B1 (pt) 2022-03-22
KR20210046848A (ko) 2021-04-28
KR20250004121A (ko) 2025-01-07
WO2015059153A1 (en) 2015-04-30
KR102381216B1 (ko) 2022-04-08
US10242685B2 (en) 2019-03-26
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