AR080475A1 - Dispositivo y metodo para respuesta de magnitud mejorada y alineacion temporaria en un metodo de extension de ancho de banda basado en un codificador de fase operado por voz para senales de audio - Google Patents

Dispositivo y metodo para respuesta de magnitud mejorada y alineacion temporaria en un metodo de extension de ancho de banda basado en un codificador de fase operado por voz para senales de audio

Info

Publication number
AR080475A1
AR080475A1 ARP110100722A ARP110100722A AR080475A1 AR 080475 A1 AR080475 A1 AR 080475A1 AR P110100722 A ARP110100722 A AR P110100722A AR P110100722 A ARP110100722 A AR P110100722A AR 080475 A1 AR080475 A1 AR 080475A1
Authority
AR
Argentina
Prior art keywords
codifier
audio signals
bandwidth extension
magnitude response
method based
Prior art date
Application number
ARP110100722A
Other languages
English (en)
Original Assignee
Fraunhofer Ges Forschung
Dolby Int Ab
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 Fraunhofer Ges Forschung, Dolby Int Ab filed Critical Fraunhofer Ges Forschung
Publication of AR080475A1 publication Critical patent/AR080475A1/es

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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
    • G10L19/0204—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
    • G10L19/0208—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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • 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
    • G10L19/16—Vocoder architecture
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Un aparato para generar una senal extendida de ancho de banda de audio desde una senal de entrada, que comprende un generador de parche para generar la senal o senales de parche desde la senal de entrada, donde el generador de parche se configura para realizar una expansion de tiempo (1800, 1808) de senales de sub-banda desde un banco de filtro de análisis, y donde el generador de parche además comprende un ajustador de fase (1806) para ajustar fases de senales de sub-banda utilizando una correccion de fase que depende de un banco de filtro-canal.
ARP110100722A 2010-03-09 2011-03-09 Dispositivo y metodo para respuesta de magnitud mejorada y alineacion temporaria en un metodo de extension de ancho de banda basado en un codificador de fase operado por voz para senales de audio AR080475A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31211810P 2010-03-09 2010-03-09
PCT/EP2011/053298 WO2011110494A1 (en) 2010-03-09 2011-03-04 Improved magnitude response and temporal alignment in phase vocoder based bandwidth extension for audio signals

Publications (1)

Publication Number Publication Date
AR080475A1 true AR080475A1 (es) 2012-04-11

Family

ID=43829366

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP110100722A AR080475A1 (es) 2010-03-09 2011-03-09 Dispositivo y metodo para respuesta de magnitud mejorada y alineacion temporaria en un metodo de extension de ancho de banda basado en un codificador de fase operado por voz para senales de audio

Country Status (17)

Country Link
US (2) US9318127B2 (es)
EP (1) EP2545551B1 (es)
JP (1) JP5854520B2 (es)
KR (1) KR101483157B1 (es)
CN (1) CN102985970B (es)
AR (1) AR080475A1 (es)
BR (1) BR112012022745B1 (es)
CA (1) CA2792449C (es)
ES (1) ES2655085T3 (es)
MX (1) MX2012010314A (es)
MY (1) MY152376A (es)
PL (1) PL2545551T3 (es)
PT (1) PT2545551T (es)
RU (1) RU2596033C2 (es)
SG (1) SG183966A1 (es)
TW (1) TWI425501B (es)
WO (1) WO2011110494A1 (es)

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Also Published As

Publication number Publication date
US9905235B2 (en) 2018-02-27
JP2013521536A (ja) 2013-06-10
SG183966A1 (en) 2012-10-30
CN102985970B (zh) 2014-11-05
US9318127B2 (en) 2016-04-19
EP2545551B1 (en) 2017-10-04
WO2011110494A1 (en) 2011-09-15
KR101483157B1 (ko) 2015-01-15
PT2545551T (pt) 2018-01-03
US20160267917A1 (en) 2016-09-15
PL2545551T3 (pl) 2018-03-30
KR20130007598A (ko) 2013-01-18
RU2012142246A (ru) 2014-04-20
RU2596033C2 (ru) 2016-08-27
EP2545551A1 (en) 2013-01-16
MY152376A (en) 2014-09-15
AU2011226206B2 (en) 2013-12-19
CN102985970A (zh) 2013-03-20
AU2011226206A1 (en) 2012-10-18
TWI425501B (zh) 2014-02-01
CA2792449A1 (en) 2011-09-15
CA2792449C (en) 2017-12-05
ES2655085T3 (es) 2018-02-16
BR112012022745B1 (pt) 2020-11-10
JP5854520B2 (ja) 2016-02-09
TW201207844A (en) 2012-02-16
MX2012010314A (es) 2012-09-28
US20130058498A1 (en) 2013-03-07
BR112012022745A2 (pt) 2018-06-05

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