AR094683A1 - Aparato y método para sintetizar una señal de audio, decodificador, codificador, sistema y programa de computación - Google Patents

Aparato y método para sintetizar una señal de audio, decodificador, codificador, sistema y programa de computación

Info

Publication number
AR094683A1
AR094683A1 ARP140100299A ARP140100299A AR094683A1 AR 094683 A1 AR094683 A1 AR 094683A1 AR P140100299 A ARP140100299 A AR P140100299A AR P140100299 A ARP140100299 A AR P140100299A AR 094683 A1 AR094683 A1 AR 094683A1
Authority
AR
Argentina
Prior art keywords
audio signal
synthesizing
decoder
coding
computer program
Prior art date
Application number
ARP140100299A
Other languages
English (en)
Original Assignee
Fraunhofer Ges Forschung
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 filed Critical Fraunhofer Ges Forschung
Publication of AR094683A1 publication Critical patent/AR094683A1/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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/087—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC
    • 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
    • G10L19/04—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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L19/04—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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients

Landscapes

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

Abstract

Se describen un método y un aparato para sintetizar una señal de audio. Se aplica una pendiente espectral al código de un libro de códigos (202) utilizado para sintetizar una trama actual de la señal de audio. La pendiente espectral está basada en la pendiente espectral de la trama actual de la señal de audio. Asimismo, se describe un decodificador de audio que opera de acuerdo con el enfoque de la presente.
ARP140100299A 2013-01-29 2014-01-29 Aparato y método para sintetizar una señal de audio, decodificador, codificador, sistema y programa de computación AR094683A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361758098P 2013-01-29 2013-01-29

Publications (1)

Publication Number Publication Date
AR094683A1 true AR094683A1 (es) 2015-08-19

Family

ID=50033504

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP140100299A AR094683A1 (es) 2013-01-29 2014-01-29 Aparato y método para sintetizar una señal de audio, decodificador, codificador, sistema y programa de computación

Country Status (20)

Country Link
US (3) US10431232B2 (es)
EP (1) EP2951819B1 (es)
JP (1) JP6082126B2 (es)
KR (1) KR101737254B1 (es)
CN (1) CN105009210B (es)
AR (1) AR094683A1 (es)
AU (1) AU2014211524B2 (es)
BR (1) BR112015018023B1 (es)
CA (1) CA2899059C (es)
ES (1) ES2626977T3 (es)
HK (1) HK1217564A1 (es)
MX (1) MX347316B (es)
MY (1) MY183444A (es)
PL (1) PL2951819T3 (es)
PT (1) PT2951819T (es)
RU (1) RU2618919C2 (es)
SG (1) SG11201505903UA (es)
TW (1) TWI544481B (es)
WO (1) WO2014118156A1 (es)
ZA (1) ZA201506318B (es)

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* Cited by examiner, † Cited by third party
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Also Published As

Publication number Publication date
EP2951819B1 (en) 2017-03-01
CA2899059A1 (en) 2014-08-07
MX2015009749A (es) 2015-11-06
ZA201506318B (en) 2016-07-27
TW201435862A (zh) 2014-09-16
US11996110B2 (en) 2024-05-28
CN105009210B (zh) 2018-04-10
JP2016509694A (ja) 2016-03-31
TWI544481B (zh) 2016-08-01
US20190378528A1 (en) 2019-12-12
RU2015136788A (ru) 2017-03-06
EP2951819A1 (en) 2015-12-09
US20150332694A1 (en) 2015-11-19
CA2899059C (en) 2018-05-15
PL2951819T3 (pl) 2017-08-31
ES2626977T3 (es) 2017-07-26
BR112015018023B1 (pt) 2022-06-07
WO2014118156A1 (en) 2014-08-07
MX347316B (es) 2017-04-21
RU2618919C2 (ru) 2017-05-12
CN105009210A (zh) 2015-10-28
AU2014211524B2 (en) 2016-07-07
KR20150112028A (ko) 2015-10-06
SG11201505903UA (en) 2015-08-28
BR112015018023A2 (es) 2017-08-22
AU2014211524A1 (en) 2015-09-17
KR101737254B1 (ko) 2017-05-17
US11373664B2 (en) 2022-06-28
US10431232B2 (en) 2019-10-01
PT2951819T (pt) 2017-06-06
US20220293114A1 (en) 2022-09-15
HK1217564A1 (zh) 2017-01-13
MY183444A (en) 2021-02-18
JP6082126B2 (ja) 2017-02-15

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