MX375301B - Aparato y método para codificar y decodificar una señal multi-canal utilizando un parámetro de alineación de banda ancha y una pluralidad de parámetros de alineación de banda angosta. - Google Patents

Aparato y método para codificar y decodificar una señal multi-canal utilizando un parámetro de alineación de banda ancha y una pluralidad de parámetros de alineación de banda angosta.

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Publication number
MX375301B
MX375301B MX2018008887A MX2018008887A MX375301B MX 375301 B MX375301 B MX 375301B MX 2018008887 A MX2018008887 A MX 2018008887A MX 2018008887 A MX2018008887 A MX 2018008887A MX 375301 B MX375301 B MX 375301B
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MX
Mexico
Prior art keywords
signal
encoding
parameter
narrowband
broadband
Prior art date
Application number
MX2018008887A
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English (en)
Other versions
MX2018008887A (es
Inventor
Eleni Fotopoulou
Emmanuel Ravelli
Goran Markovic
Guillaume Fuchs
Markus Multrus
Markus Schnell
Martin Dietz
Stefan Bayer
Stefan Döhla
Wolfgang Jägers
Original Assignee
Fraunhofer Ges Forschung
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Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2018008887A publication Critical patent/MX2018008887A/es
Publication of MX375301B publication Critical patent/MX375301B/es

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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
    • G10L19/008—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
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Control Of Eletrric Generators (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

El aparato para codificar una señal multi-canal que tiene al menos dos canales, comprende: un determinador de parámetros (100) para determinar un parámetro de alineación de banda ancha y una pluralidad de parámetros de alineación de banda angosta de la señal multi-canal: un alineador de señales (200) para alinear los al menos dos canales usando el parámetro de alineación de banda ancha y la pluralidad de parámetros de alineación de banda angosta para obtener canales alineados; un procesador de señales (300) para calcular una señal central y una señal lateral usando los canales alineados; un codificador de señales (400) para codificar la señal central para obtener una señal central codificada y para codificar la señal lateral para obtener una señal lateral codificada; y una interfaz de salida (500) para generar una señal multi-canal codificada que comprende la señal central codificada, la señal lateral codificada, información sobre el parámetro de alineación de banda ancha e información sobre la pluralidad de parámetros de alineación de banda angosta,
MX2018008887A 2016-01-22 2017-01-20 Aparato y método para codificar y decodificar una señal multi-canal utilizando un parámetro de alineación de banda ancha y una pluralidad de parámetros de alineación de banda angosta. MX375301B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16152450 2016-01-22
EP16152453 2016-01-22
PCT/EP2017/051205 WO2017125558A1 (en) 2016-01-22 2017-01-20 Apparatus and method for encoding or decoding a multi-channel signal using a broadband alignment parameter and a plurality of narrowband alignment parameters

Publications (2)

Publication Number Publication Date
MX2018008887A MX2018008887A (es) 2018-11-09
MX375301B true MX375301B (es) 2025-03-06

Family

ID=57838406

Family Applications (4)

Application Number Title Priority Date Filing Date
MX2017015009A MX371224B (es) 2016-01-22 2017-01-20 Aparato y metodo para codificar o decodificar una se?al multi-canal utilizando repeticion de muestreo de dominio espectral.
MX2018008889A MX372605B (es) 2016-01-22 2017-01-20 Aparato y método para estimar una diferencia de tiempos entre canales.
MX2018008890A MX374982B (es) 2016-01-22 2017-01-20 Aparato y método para codificar o decodificar una señal multi-canal utilizando sincronización de control de entramado
MX2018008887A MX375301B (es) 2016-01-22 2017-01-20 Aparato y método para codificar y decodificar una señal multi-canal utilizando un parámetro de alineación de banda ancha y una pluralidad de parámetros de alineación de banda angosta.

Family Applications Before (3)

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MX2017015009A MX371224B (es) 2016-01-22 2017-01-20 Aparato y metodo para codificar o decodificar una se?al multi-canal utilizando repeticion de muestreo de dominio espectral.
MX2018008889A MX372605B (es) 2016-01-22 2017-01-20 Aparato y método para estimar una diferencia de tiempos entre canales.
MX2018008890A MX374982B (es) 2016-01-22 2017-01-20 Aparato y método para codificar o decodificar una señal multi-canal utilizando sincronización de control de entramado

Country Status (19)

Country Link
US (7) US10535356B2 (es)
EP (5) EP3405948B1 (es)
JP (10) JP6412292B2 (es)
KR (4) KR102083200B1 (es)
CN (6) CN108885877B (es)
AU (5) AU2017208580B2 (es)
CA (4) CA3011914C (es)
ES (5) ES2727462T3 (es)
HK (1) HK1244584B (es)
MX (4) MX371224B (es)
MY (4) MY196436A (es)
PL (4) PL3405949T3 (es)
PT (3) PT3405949T (es)
RU (4) RU2704733C1 (es)
SG (3) SG11201806216YA (es)
TR (1) TR201906475T4 (es)
TW (4) TWI653627B (es)
WO (4) WO2017125562A1 (es)
ZA (3) ZA201804625B (es)

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