MX361040B - Selección de libros de códigos para codificar vectores descompuestos de señales de audio ambisónicas de orden superior. - Google Patents

Selección de libros de códigos para codificar vectores descompuestos de señales de audio ambisónicas de orden superior.

Info

Publication number
MX361040B
MX361040B MX2016014918A MX2016014918A MX361040B MX 361040 B MX361040 B MX 361040B MX 2016014918 A MX2016014918 A MX 2016014918A MX 2016014918 A MX2016014918 A MX 2016014918A MX 361040 B MX361040 B MX 361040B
Authority
MX
Mexico
Prior art keywords
order ambisonic
codebooks
audio signals
coding vectors
ambisonic audio
Prior art date
Application number
MX2016014918A
Other languages
English (en)
Other versions
MX2016014918A (es
Inventor
Günther Peters Nils
Young Kim Moo
Sen Dipanjan
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of MX2016014918A publication Critical patent/MX2016014918A/es
Publication of MX361040B publication Critical patent/MX361040B/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
    • G10L19/02—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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms

Landscapes

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

Abstract

En general, se describen técnicas para ejecutar selección de libro de códigos cuando se codifican vectores descompuestos de coeficientes ambisónicos de orden superior; un dispositivo que comprende una memoria y un procesador puede ejecutar las técnicas; la memoria puede ser configurada para almacenar una pluralidad de libros de códigos que se van a utilizar cuando se ejecuta descuantificación vectorial con respecto a un componente espacial de vector cuantificado de un campo de sonido; el componente espacial de vector cuantificado se puede obtener a través de la aplicación de una descomposición a una pluralidad de coeficientes ambisónicos de orden superior; el procesador se puede configurar para seleccionar uno de la pluralidad de libros de códigos.
MX2016014918A 2014-05-16 2015-05-15 Selección de libros de códigos para codificar vectores descompuestos de señales de audio ambisónicas de orden superior. MX361040B (es)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201461994794P 2014-05-16 2014-05-16
US201462004128P 2014-05-28 2014-05-28
US201462019663P 2014-07-01 2014-07-01
US201462027702P 2014-07-22 2014-07-22
US201462028282P 2014-07-23 2014-07-23
US201462032440P 2014-08-01 2014-08-01
US14/712,849 US10770087B2 (en) 2014-05-16 2015-05-14 Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals
PCT/US2015/031192 WO2015176003A1 (en) 2014-05-16 2015-05-15 Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals

Publications (2)

Publication Number Publication Date
MX2016014918A MX2016014918A (es) 2017-04-06
MX361040B true MX361040B (es) 2018-11-26

Family

ID=53274842

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016014918A MX361040B (es) 2014-05-16 2015-05-15 Selección de libros de códigos para codificar vectores descompuestos de señales de audio ambisónicas de orden superior.

Country Status (17)

Country Link
US (1) US10770087B2 (es)
EP (1) EP3143616B1 (es)
JP (1) JP6728065B2 (es)
KR (1) KR102329373B1 (es)
CN (1) CN106463129B (es)
AU (1) AU2015258831B2 (es)
BR (1) BR112016026822B1 (es)
CA (1) CA2948563C (es)
CL (1) CL2016002896A1 (es)
MX (1) MX361040B (es)
MY (1) MY189359A (es)
PH (1) PH12016502273B1 (es)
RU (1) RU2688275C2 (es)
SG (1) SG11201608520RA (es)
TW (1) TWI676983B (es)
WO (1) WO2015176003A1 (es)
ZA (1) ZA201607881B (es)

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