ES2660778T3 - Reconstrucción paramétrica de señales de audio - Google Patents

Reconstrucción paramétrica de señales de audio Download PDF

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Publication number
ES2660778T3
ES2660778T3 ES14792778.4T ES14792778T ES2660778T3 ES 2660778 T3 ES2660778 T3 ES 2660778T3 ES 14792778 T ES14792778 T ES 14792778T ES 2660778 T3 ES2660778 T3 ES 2660778T3
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Prior art keywords
signal
upmix
downmix
matrix
dry
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ES14792778.4T
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English (en)
Spanish (es)
Inventor
Lars Villemoes
Heidi-Maria LEHTONEN
Heiko Purnhagen
Toni HIRVONEN
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Dolby International AB
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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)
ES14792778.4T 2013-10-21 2014-10-21 Reconstrucción paramétrica de señales de audio Active ES2660778T3 (es)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201361893770P 2013-10-21 2013-10-21
US201361893770P 2013-10-21
US201461974544P 2014-04-03 2014-04-03
US201461974544P 2014-04-03
US201462037693P 2014-08-15 2014-08-15
US201462037693P 2014-08-15
PCT/EP2014/072570 WO2015059153A1 (en) 2013-10-21 2014-10-21 Parametric reconstruction of audio signals

Publications (1)

Publication Number Publication Date
ES2660778T3 true ES2660778T3 (es) 2018-03-26

Family

ID=51845388

Family Applications (1)

Application Number Title Priority Date Filing Date
ES14792778.4T Active ES2660778T3 (es) 2013-10-21 2014-10-21 Reconstrucción paramétrica de señales de audio

Country Status (9)

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

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Also Published As

Publication number Publication date
US20260004793A1 (en) 2026-01-01
US10242685B2 (en) 2019-03-26
EP3061089A1 (en) 2016-08-31
CN105917406A (zh) 2016-08-31
US20240087584A1 (en) 2024-03-14
US20200302943A1 (en) 2020-09-24
KR20210046848A (ko) 2021-04-28
KR102486365B1 (ko) 2023-01-09
KR102381216B1 (ko) 2022-04-08
CN111179956B (zh) 2023-08-11
KR102244379B1 (ko) 2021-04-26
KR20230011480A (ko) 2023-01-20
US20180268831A1 (en) 2018-09-20
CN111192592B (zh) 2023-09-15
US11450330B2 (en) 2022-09-20
US20190325885A1 (en) 2019-10-24
EP3061089B1 (en) 2018-01-17
BR112016008817B1 (pt) 2022-03-22
US20160247514A1 (en) 2016-08-25
US12175990B2 (en) 2024-12-24
US11769516B2 (en) 2023-09-26
US9978385B2 (en) 2018-05-22
CN105917406B (zh) 2020-01-17
CN111179956A (zh) 2020-05-19
WO2015059153A1 (en) 2015-04-30
KR20250004121A (ko) 2025-01-07
US20230104408A1 (en) 2023-04-06
JP6479786B2 (ja) 2019-03-06
KR102741608B1 (ko) 2024-12-16
RU2016119563A (ru) 2017-11-28
KR20220044619A (ko) 2022-04-08
US10614825B2 (en) 2020-04-07
CN111192592A (zh) 2020-05-22
BR112016008817A2 (https=) 2017-08-01
KR20160099531A (ko) 2016-08-22
JP2016537669A (ja) 2016-12-01
RU2648947C2 (ru) 2018-03-28

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