MX342150B - Codificacion y decodificacion de señales de audio. - Google Patents

Codificacion y decodificacion de señales de audio.

Info

Publication number
MX342150B
MX342150B MX2015000113A MX2015000113A MX342150B MX 342150 B MX342150 B MX 342150B MX 2015000113 A MX2015000113 A MX 2015000113A MX 2015000113 A MX2015000113 A MX 2015000113A MX 342150 B MX342150 B MX 342150B
Authority
MX
Mexico
Prior art keywords
tiles
encoded
encoding
downmixed
downmix
Prior art date
Application number
MX2015000113A
Other languages
English (en)
Other versions
MX2015000113A (es
Inventor
Werner Johannes Oomen Arnoldus
Gerardus Henricus Koppens Jeroen
Gosuinus Petrus Schuijers Erik
Original Assignee
Koninklijke Philips Nv
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 by Koninklijke Philips Nv filed Critical Koninklijke Philips Nv
Publication of MX2015000113A publication Critical patent/MX2015000113A/es
Publication of MX342150B publication Critical patent/MX342150B/es

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • G10L19/0204—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)

Abstract

Un codificador (1201) para realizar la codificación de una pluralidad de señales de audio comprende un selector (1303) el cual realiza la selección de un subconjunto de mosaicos de tiempo-frecuencia que son mezclados de manera reductora y un subconjunto de mosaicos que son mezclados de manera no reductora. Se genera una indicación de mezcla reductora la cual señala si los mosaicos se codifican como mosaicos codificados mezclados de manera reductora o como mosaicos que no son de mezcla reductora. Una señal codificada comprende los mosaicos codificados y la indicación de mezcla reductora es alimentada a un decodificador (1203) el cual incluye un receptor (1401) para realizar la recepción de la señal. Un generador (1403) genera señales de salida a partir de los mosaicos de tiempo-frecuencia codificados donde la generación de las señales de salida incluye una mezcla incrementadora para mosaicos que son señalados por la indicación de mezcla reductora que son mosaicos mezclados de manera reductora codificados. La invención puede proporcionar una codificación/decodificación más flexible y/o mejorada y puede proporcionar específicamente una escalabilidad mejorada, especialmente a velocidades de datos más altas.
MX2015000113A 2012-07-09 2013-07-09 Codificacion y decodificacion de señales de audio. MX342150B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261669197P 2012-07-09 2012-07-09
PCT/IB2013/055628 WO2014009878A2 (en) 2012-07-09 2013-07-09 Encoding and decoding of audio signals

Publications (2)

Publication Number Publication Date
MX2015000113A MX2015000113A (es) 2015-08-10
MX342150B true MX342150B (es) 2016-09-15

Family

ID=49170767

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015000113A MX342150B (es) 2012-07-09 2013-07-09 Codificacion y decodificacion de señales de audio.

Country Status (9)

Country Link
US (1) US9478228B2 (es)
EP (2) EP3748632A1 (es)
JP (1) JP6231093B2 (es)
CN (1) CN104428835B (es)
BR (1) BR112015000247B1 (es)
MX (1) MX342150B (es)
RU (1) RU2643644C2 (es)
WO (1) WO2014009878A2 (es)
ZA (1) ZA201500888B (es)

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Also Published As

Publication number Publication date
JP6231093B2 (ja) 2017-11-15
WO2014009878A3 (en) 2014-03-13
JP2015527609A (ja) 2015-09-17
ZA201500888B (en) 2017-01-25
US9478228B2 (en) 2016-10-25
CN104428835A (zh) 2015-03-18
WO2014009878A2 (en) 2014-01-16
BR112015000247A2 (pt) 2017-06-27
US20150142453A1 (en) 2015-05-21
CN104428835B (zh) 2017-10-31
MX2015000113A (es) 2015-08-10
RU2643644C2 (ru) 2018-02-02
BR112015000247B1 (pt) 2021-08-03
RU2015104074A (ru) 2016-08-27
EP3748632A1 (en) 2020-12-09
EP2870603A2 (en) 2015-05-13
EP2870603B1 (en) 2020-09-30

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