MX2010001394A - Frecuencia de transicion adaptiva entre llenado de ruido y extension de anchura de banda. - Google Patents

Frecuencia de transicion adaptiva entre llenado de ruido y extension de anchura de banda.

Info

Publication number
MX2010001394A
MX2010001394A MX2010001394A MX2010001394A MX2010001394A MX 2010001394 A MX2010001394 A MX 2010001394A MX 2010001394 A MX2010001394 A MX 2010001394A MX 2010001394 A MX2010001394 A MX 2010001394A MX 2010001394 A MX2010001394 A MX 2010001394A
Authority
MX
Mexico
Prior art keywords
transition frequency
spectral
bandwidth extension
audio signal
noise fill
Prior art date
Application number
MX2010001394A
Other languages
English (en)
Inventor
Gustaf Ullberg
Manuel Briand
Anisse Taleb
Original Assignee
Ericsson Telefon Ab L M
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40387561&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2010001394(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of MX2010001394A publication Critical patent/MX2010001394A/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
    • 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
    • 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
    • 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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L19/02—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
    • G10L19/035—Scalar quantisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un método para recuperación de espectro en descodificación espectral de una señal de audio, comprende obtener (210) de un juego inicial de coeficientes espectrales que representan la señal de audio, y determinar (212) una frecuencia de transición. La frecuencia de transición está adaptada a un contenido espectral de la señal de audio. Los agujeros espectrales en el juego inicial de coeficientes espectrales inferiores a la frecuencia de transición se llenan con ruido (214) y el juego inicial de coeficientes espectrales son extendidos en anchura de banda (216) por encima de la frecuencia de transición. También se ilustran los descodificadores y codificadores que están dispuestos para realizar parte de o el método completo.
MX2010001394A 2007-08-27 2008-08-26 Frecuencia de transicion adaptiva entre llenado de ruido y extension de anchura de banda. MX2010001394A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96813407P 2007-08-27 2007-08-27
PCT/SE2008/050969 WO2009029037A1 (en) 2007-08-27 2008-08-26 Adaptive transition frequency between noise fill and bandwidth extension

Publications (1)

Publication Number Publication Date
MX2010001394A true MX2010001394A (es) 2010-03-10

Family

ID=40387561

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010001394A MX2010001394A (es) 2007-08-27 2008-08-26 Frecuencia de transicion adaptiva entre llenado de ruido y extension de anchura de banda.

Country Status (12)

Country Link
US (5) US9269372B2 (es)
EP (2) EP2186086B1 (es)
JP (2) JP5183741B2 (es)
CN (1) CN101939782B (es)
BR (1) BRPI0815972B1 (es)
DK (1) DK2571024T3 (es)
ES (2) ES2403410T3 (es)
HK (1) HK1143239A1 (es)
MX (1) MX2010001394A (es)
PL (1) PL2186086T3 (es)
PT (1) PT2571024E (es)
WO (1) WO2009029037A1 (es)

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Also Published As

Publication number Publication date
US20210110836A1 (en) 2021-04-15
JP5183741B2 (ja) 2013-04-17
US20110264454A1 (en) 2011-10-27
ES2526333T3 (es) 2015-01-09
BRPI0815972A2 (pt) 2015-09-29
EP2571024A1 (en) 2013-03-20
ES2403410T3 (es) 2013-05-17
US20190122680A1 (en) 2019-04-25
US11990147B2 (en) 2024-05-21
CN101939782B (zh) 2012-12-05
EP2571024B1 (en) 2014-10-22
PL2186086T3 (pl) 2013-07-31
JP5458189B2 (ja) 2014-04-02
WO2009029037A1 (en) 2009-03-05
DK2571024T3 (en) 2015-01-05
US10878829B2 (en) 2020-12-29
EP2186086A4 (en) 2012-01-25
JP2013117730A (ja) 2013-06-13
BRPI0815972A8 (pt) 2017-11-14
PT2571024E (pt) 2014-12-23
US20170301358A1 (en) 2017-10-19
US9711154B2 (en) 2017-07-18
US9269372B2 (en) 2016-02-23
EP2186086B1 (en) 2013-01-23
JP2010538318A (ja) 2010-12-09
US20160086614A1 (en) 2016-03-24
BRPI0815972B1 (pt) 2020-02-04
US10199049B2 (en) 2019-02-05
HK1143239A1 (en) 2010-12-24
EP2186086A1 (en) 2010-05-19
CN101939782A (zh) 2011-01-05

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