BRPI0815972A2 - método para recuperação de espectro em decodificação espectral de um sinal de áudio, método para uso em codificação especral de um sinal de áudio, decodificador, e, codificador - Google Patents

método para recuperação de espectro em decodificação espectral de um sinal de áudio, método para uso em codificação especral de um sinal de áudio, decodificador, e, codificador

Info

Publication number
BRPI0815972A2
BRPI0815972A2 BRPI0815972A BRPI0815972A BRPI0815972A2 BR PI0815972 A2 BRPI0815972 A2 BR PI0815972A2 BR PI0815972 A BRPI0815972 A BR PI0815972A BR PI0815972 A BRPI0815972 A BR PI0815972A BR PI0815972 A2 BRPI0815972 A2 BR PI0815972A2
Authority
BR
Brazil
Prior art keywords
audio signal
spectral
decoder
encoder
decoding
Prior art date
Application number
BRPI0815972A
Other languages
English (en)
Inventor
Anisse Taleb
Gustaf Ullberg
Manuel Briand
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=BRPI0815972(A2) "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 BRPI0815972A2 publication Critical patent/BRPI0815972A2/pt
Publication of BRPI0815972A8 publication Critical patent/BRPI0815972A8/pt
Publication of BRPI0815972B1 publication Critical patent/BRPI0815972B1/pt

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)
BRPI0815972A 2007-08-27 2008-08-26 método para recuperação de espectro em decodificação espectral de um sinal de áudio, método para uso em codificação espectral de um sinal de áudio, decodificador, e, codificador BRPI0815972B1 (pt)

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 (3)

Publication Number Publication Date
BRPI0815972A2 true BRPI0815972A2 (pt) 2015-09-29
BRPI0815972A8 BRPI0815972A8 (pt) 2017-11-14
BRPI0815972B1 BRPI0815972B1 (pt) 2020-02-04

Family

ID=40387561

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0815972A BRPI0815972B1 (pt) 2007-08-27 2008-08-26 método para recuperação de espectro em decodificação espectral de um sinal de áudio, método para uso em codificação espectral de um sinal de áudio, decodificador, e, codificador

Country Status (11)

Country Link
US (5) US9269372B2 (pt)
EP (2) EP2571024B1 (pt)
JP (2) JP5183741B2 (pt)
CN (1) CN101939782B (pt)
BR (1) BRPI0815972B1 (pt)
DK (1) DK2571024T3 (pt)
ES (2) ES2403410T3 (pt)
MX (1) MX2010001394A (pt)
PL (1) PL2186086T3 (pt)
PT (1) PT2571024E (pt)
WO (1) WO2009029037A1 (pt)

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Also Published As

Publication number Publication date
PT2571024E (pt) 2014-12-23
BRPI0815972B1 (pt) 2020-02-04
JP2013117730A (ja) 2013-06-13
ES2403410T3 (es) 2013-05-17
CN101939782A (zh) 2011-01-05
US20160086614A1 (en) 2016-03-24
JP5183741B2 (ja) 2013-04-17
US20110264454A1 (en) 2011-10-27
US9269372B2 (en) 2016-02-23
PL2186086T3 (pl) 2013-07-31
MX2010001394A (es) 2010-03-10
DK2571024T3 (en) 2015-01-05
HK1143239A1 (en) 2010-12-24
US20210110836A1 (en) 2021-04-15
EP2186086A4 (en) 2012-01-25
WO2009029037A1 (en) 2009-03-05
JP5458189B2 (ja) 2014-04-02
BRPI0815972A8 (pt) 2017-11-14
US20190122680A1 (en) 2019-04-25
EP2186086B1 (en) 2013-01-23
EP2186086A1 (en) 2010-05-19
US20170301358A1 (en) 2017-10-19
US9711154B2 (en) 2017-07-18
CN101939782B (zh) 2012-12-05
ES2526333T3 (es) 2015-01-09
US11990147B2 (en) 2024-05-21
US10199049B2 (en) 2019-02-05
EP2571024B1 (en) 2014-10-22
US10878829B2 (en) 2020-12-29
EP2571024A1 (en) 2013-03-20
JP2010538318A (ja) 2010-12-09

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