MX2016002421A - Diseño de tabla de bandas de frecuencia para algoritmos de reconstruccion de alta frecuencia. - Google Patents

Diseño de tabla de bandas de frecuencia para algoritmos de reconstruccion de alta frecuencia.

Info

Publication number
MX2016002421A
MX2016002421A MX2016002421A MX2016002421A MX2016002421A MX 2016002421 A MX2016002421 A MX 2016002421A MX 2016002421 A MX2016002421 A MX 2016002421A MX 2016002421 A MX2016002421 A MX 2016002421A MX 2016002421 A MX2016002421 A MX 2016002421A
Authority
MX
Mexico
Prior art keywords
high frequency
band table
signal
reconstruction algorithms
table design
Prior art date
Application number
MX2016002421A
Other languages
English (en)
Other versions
MX355259B (es
Inventor
Per Ekstrand
Kristofer Kjoerling
Original Assignee
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 Dolby Int Ab filed Critical Dolby Int Ab
Publication of MX2016002421A publication Critical patent/MX2016002421A/es
Publication of MX355259B publication Critical patent/MX355259B/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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L21/0388—Details of processing therefor
    • 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
    • G10L2019/0001—Codebooks

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

Abstract

El presente documento se relaciona con la codificación y decodificación de audio. En particular, el presente documento se relaciona con esquemas de codificación de audio que utilizan métodos de reconstrucción de alta frecuencia (HFR). Se describe un sistema configurado para determinar una tabla maestra de bandas de factor de escala de una señal de banda alta (105) de una señal de audio. La señal de banda alta (105) se ha de generar a partir de una señal de banda baja (101) de la señal de audio usando un esquema de reconstrucción de alta frecuencia (HFR). La tabla maestra de bandas de factor de escala es indicativa de la resolución de frecuencia de una envolvente espectral de la señal de banda alta (105).
MX2016002421A 2013-08-29 2014-08-11 Diseño de tabla de bandas de frecuencia para algoritmos de reconstruccion de alta frecuencia. MX355259B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361871575P 2013-08-29 2013-08-29
PCT/EP2014/067168 WO2015028297A1 (en) 2013-08-29 2014-08-11 Frequency band table design for high frequency reconstruction algorithms

Publications (2)

Publication Number Publication Date
MX2016002421A true MX2016002421A (es) 2016-06-10
MX355259B MX355259B (es) 2018-04-11

Family

ID=51355520

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016002421A MX355259B (es) 2013-08-29 2014-08-11 Diseño de tabla de bandas de frecuencia para algoritmos de reconstruccion de alta frecuencia.

Country Status (24)

Country Link
US (1) US9842594B2 (es)
EP (1) EP3008727B1 (es)
JP (1) JP6392873B2 (es)
KR (1) KR101786863B1 (es)
CN (1) CN105556602B (es)
AR (1) AR097454A1 (es)
AU (1) AU2014314477B2 (es)
BR (1) BR112016004157B1 (es)
CA (1) CA2920816C (es)
CL (1) CL2016000475A1 (es)
DK (1) DK3008727T3 (es)
ES (1) ES2634196T3 (es)
HK (1) HK1219557A1 (es)
HU (1) HUE033077T2 (es)
IL (1) IL243961B (es)
ME (1) ME02812B (es)
MX (1) MX355259B (es)
MY (1) MY183529A (es)
PL (1) PL3008727T3 (es)
RU (1) RU2650031C2 (es)
SG (1) SG11201600830UA (es)
TW (1) TWI557726B (es)
UA (1) UA116572C2 (es)
WO (1) WO2015028297A1 (es)

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Also Published As

Publication number Publication date
JP6392873B2 (ja) 2018-09-19
TWI557726B (zh) 2016-11-11
HUE033077T2 (en) 2017-11-28
CA2920816C (en) 2018-04-17
ME02812B (me) 2018-01-20
PL3008727T3 (pl) 2017-10-31
SG11201600830UA (en) 2016-03-30
ES2634196T3 (es) 2017-09-27
US9842594B2 (en) 2017-12-12
RU2016111311A (ru) 2017-10-04
IL243961A0 (en) 2016-04-21
CN105556602B (zh) 2019-10-01
AR097454A1 (es) 2016-03-16
MY183529A (en) 2021-02-24
RU2650031C2 (ru) 2018-04-06
AU2014314477B2 (en) 2016-11-24
US20160210970A1 (en) 2016-07-21
DK3008727T3 (en) 2017-08-28
BR112016004157B1 (pt) 2022-05-17
CN105556602A (zh) 2016-05-04
EP3008727A1 (en) 2016-04-20
CL2016000475A1 (es) 2016-09-23
MX355259B (es) 2018-04-11
TW201521014A (zh) 2015-06-01
WO2015028297A1 (en) 2015-03-05
CA2920816A1 (en) 2015-03-05
BR112016004157A2 (es) 2017-08-01
IL243961B (en) 2020-04-30
KR101786863B1 (ko) 2017-10-18
AU2014314477A1 (en) 2016-02-25
JP2016535870A (ja) 2016-11-17
EP3008727B1 (en) 2017-06-14
HK1219557A1 (zh) 2017-04-07
KR20160036670A (ko) 2016-04-04
UA116572C2 (uk) 2018-04-10

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