PT2186090T - Detetor de transitórios e método para suportar codificação de um sinal de áudio - Google Patents

Detetor de transitórios e método para suportar codificação de um sinal de áudio

Info

Publication number
PT2186090T
PT2186090T PT88288808T PT08828880T PT2186090T PT 2186090 T PT2186090 T PT 2186090T PT 88288808 T PT88288808 T PT 88288808T PT 08828880 T PT08828880 T PT 08828880T PT 2186090 T PT2186090 T PT 2186090T
Authority
PT
Portugal
Prior art keywords
audio signal
transient detector
supporting encoding
encoding
supporting
Prior art date
Application number
PT88288808T
Other languages
English (en)
Inventor
Taleb Anisse
Ullberg Gustaf
Original Assignee
ERICSSON TELEFON AB L M (publ)
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 ERICSSON TELEFON AB L M (publ) filed Critical ERICSSON TELEFON AB L M (publ)
Publication of PT2186090T publication Critical patent/PT2186090T/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/0212—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 orthogonal transformation
PT88288808T 2007-08-27 2008-08-25 Detetor de transitórios e método para suportar codificação de um sinal de áudio PT2186090T (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96822907P 2007-08-27 2007-08-27

Publications (1)

Publication Number Publication Date
PT2186090T true PT2186090T (pt) 2017-03-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PT88288808T PT2186090T (pt) 2007-08-27 2008-08-25 Detetor de transitórios e método para suportar codificação de um sinal de áudio

Country Status (9)

Country Link
US (4) US9495971B2 (pt)
EP (1) EP2186090B1 (pt)
JP (3) JP5209722B2 (pt)
CN (1) CN101790756B (pt)
CA (1) CA2697920C (pt)
ES (1) ES2619277T3 (pt)
PL (1) PL2186090T3 (pt)
PT (1) PT2186090T (pt)
WO (1) WO2009029033A1 (pt)

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Also Published As

Publication number Publication date
JP5209722B2 (ja) 2013-06-12
CA2697920A1 (en) 2009-03-05
US10311883B2 (en) 2019-06-04
JP2015163974A (ja) 2015-09-10
US20170040024A1 (en) 2017-02-09
EP2186090B1 (en) 2016-12-21
US9495971B2 (en) 2016-11-15
US20240119951A1 (en) 2024-04-11
PL2186090T3 (pl) 2017-06-30
CN101790756B (zh) 2012-09-05
WO2009029033A1 (en) 2009-03-05
JP6117269B2 (ja) 2017-04-19
US20110046965A1 (en) 2011-02-24
US20190244625A1 (en) 2019-08-08
CN101790756A (zh) 2010-07-28
EP2186090A1 (en) 2010-05-19
CA2697920C (en) 2018-01-02
US11830506B2 (en) 2023-11-28
ES2619277T3 (es) 2017-06-26
JP2013152470A (ja) 2013-08-08
EP2186090A4 (en) 2013-12-25
JP2010538315A (ja) 2010-12-09

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