JP6479786B2 - オーディオ信号のパラメトリック再構成 - Google Patents

オーディオ信号のパラメトリック再構成 Download PDF

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JP6479786B2
JP6479786B2 JP2016524490A JP2016524490A JP6479786B2 JP 6479786 B2 JP6479786 B2 JP 6479786B2 JP 2016524490 A JP2016524490 A JP 2016524490A JP 2016524490 A JP2016524490 A JP 2016524490A JP 6479786 B2 JP6479786 B2 JP 6479786B2
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signal
matrix
upmix
downmix
channel
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JP2016537669A (ja
JP2016537669A5 (enExample
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ヴィレモーズ，ラルス
レヒトーネン，ヘイディ−マリア
プルンハーゲン，ヘイコ
ヒルヴォーネン，トニ
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ドルビー・インターナショナル・アーベー
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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)
  • Acoustics & Sound (AREA)
  • Signal Processing (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)
JP2016524490A 2013-10-21 2014-10-21 オーディオ信号のパラメトリック再構成 Active JP6479786B2 (ja)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
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

Publications (3)

Publication Number Publication Date
JP2016537669A JP2016537669A (ja) 2016-12-01
JP2016537669A5 JP2016537669A5 (enExample) 2017-11-24
JP6479786B2 true JP6479786B2 (ja) 2019-03-06

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JP2016524490A Active JP6479786B2 (ja) 2013-10-21 2014-10-21 オーディオ信号のパラメトリック再構成

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US (7) US9978385B2 (enExample)
EP (1) EP3061089B1 (enExample)
JP (1) JP6479786B2 (enExample)
KR (5) KR102244379B1 (enExample)
CN (3) CN111192592B (enExample)
BR (1) BR112016008817B1 (enExample)
ES (1) ES2660778T3 (enExample)
RU (1) RU2648947C2 (enExample)
WO (1) WO2015059153A1 (enExample)

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Publication number Publication date
KR102244379B1 (ko) 2021-04-26
US20230104408A1 (en) 2023-04-06
US10242685B2 (en) 2019-03-26
BR112016008817B1 (pt) 2022-03-22
US12175990B2 (en) 2024-12-24
US20180268831A1 (en) 2018-09-20
US11450330B2 (en) 2022-09-20
KR20220044619A (ko) 2022-04-08
EP3061089B1 (en) 2018-01-17
JP2016537669A (ja) 2016-12-01
RU2016119563A (ru) 2017-11-28
US20240087584A1 (en) 2024-03-14
KR102741608B1 (ko) 2024-12-16
BR112016008817A2 (enExample) 2017-08-01
CN105917406B (zh) 2020-01-17
CN111192592A (zh) 2020-05-22
US11769516B2 (en) 2023-09-26
WO2015059153A1 (en) 2015-04-30
US20260004793A1 (en) 2026-01-01
US10614825B2 (en) 2020-04-07
RU2648947C2 (ru) 2018-03-28
KR20160099531A (ko) 2016-08-22
KR20250004121A (ko) 2025-01-07
KR102381216B1 (ko) 2022-04-08
US20160247514A1 (en) 2016-08-25
KR20210046848A (ko) 2021-04-28
CN111192592B (zh) 2023-09-15
CN111179956A (zh) 2020-05-19
ES2660778T3 (es) 2018-03-26
KR102486365B1 (ko) 2023-01-09
KR20230011480A (ko) 2023-01-20
EP3061089A1 (en) 2016-08-31
US20190325885A1 (en) 2019-10-24
CN105917406A (zh) 2016-08-31
CN111179956B (zh) 2023-08-11
US20200302943A1 (en) 2020-09-24
US9978385B2 (en) 2018-05-22

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