MX357694B - Codificacion de audio de dominio de frecuencia que soporta conmutacion de longitud de transformada. - Google Patents

Codificacion de audio de dominio de frecuencia que soporta conmutacion de longitud de transformada.

Info

Publication number
MX357694B
MX357694B MX2016000913A MX2016000913A MX357694B MX 357694 B MX357694 B MX 357694B MX 2016000913 A MX2016000913 A MX 2016000913A MX 2016000913 A MX2016000913 A MX 2016000913A MX 357694 B MX357694 B MX 357694B
Authority
MX
Mexico
Prior art keywords
frequency
transform length
domain
domain audio
signalization
Prior art date
Application number
MX2016000913A
Other languages
English (en)
Other versions
MX2016000913A (es
Inventor
Helmrich Christian
Dick Sascha
Hölzer Andreas
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 MX2016000913A publication Critical patent/MX2016000913A/es
Publication of MX357694B publication Critical patent/MX357694B/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
    • G10L19/02—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
    • 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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Mathematical Physics (AREA)

Abstract

Se provee un códec de audio de dominio de frecuencia con la capacidad de soportar adicionalmente una determinada longitud de transformada de una manera retro-compatible, gracias a lo siguiente: los coeficientes de dominio de frecuencia de una trama respectiva son transmitidos de una manera entrelazada independientemente de la señalización que señala las tramas en cuanto a cuál longitud de transformada rige realmente, y adicionalmente la extracción de los coeficientes de dominio de frecuencia y la extracción de factores de escala operan independientemente de la señalización. Gracias a esta medida, los codificadores/decodificadores de audio de dominio de frecuencia, anticuados, no sensibles a la señalización, serian sin embargo capaces de operar sin defectos y reproduciendo una calidad razonable. Al mismo tiempo, los codificadores/decodificadores de audio en el dominio de frecuencia capaces de soportar la longitud de transformada adicional ofrecerían una calidad aun superior a pesar de la retro-compatibilidad. En lo que se refiere a las penalizaciones en la eficiencia de la codificación debido a la codificación de los coeficientes de dominio de frecuencia de una manera transparente para decodificadores más antiguos, las mismas son de una naturaleza comparativamente menor debido al entrelazado.
MX2016000913A 2013-07-22 2014-07-15 Codificacion de audio de dominio de frecuencia que soporta conmutacion de longitud de transformada. MX357694B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13177373 2013-07-22
EP13189334.9A EP2830058A1 (en) 2013-07-22 2013-10-18 Frequency-domain audio coding supporting transform length switching
PCT/EP2014/065169 WO2015010965A1 (en) 2013-07-22 2014-07-15 Frequency-domain audio coding supporting transform length switching

Publications (2)

Publication Number Publication Date
MX2016000913A MX2016000913A (es) 2016-06-21
MX357694B true MX357694B (es) 2018-07-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016000913A MX357694B (es) 2013-07-22 2014-07-15 Codificacion de audio de dominio de frecuencia que soporta conmutacion de longitud de transformada.

Country Status (20)

Country Link
US (5) US10242682B2 (es)
EP (7) EP2830058A1 (es)
JP (6) JP6247759B2 (es)
KR (1) KR101819401B1 (es)
CN (2) CN105593934B (es)
AR (1) AR097005A1 (es)
AU (1) AU2014295313B2 (es)
BR (1) BR112016001247B1 (es)
CA (1) CA2918849C (es)
ES (5) ES2902949T3 (es)
FI (1) FI3961621T3 (es)
MX (1) MX357694B (es)
MY (1) MY184665A (es)
PL (5) PL3961621T3 (es)
PT (3) PT3961621T (es)
RU (1) RU2654139C2 (es)
SG (1) SG11201600369UA (es)
TW (1) TWI559294B (es)
WO (1) WO2015010965A1 (es)
ZA (1) ZA201601115B (es)

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Publication number Publication date
SG11201600369UA (en) 2016-02-26
JP7311940B2 (ja) 2023-07-20
US20240127836A1 (en) 2024-04-18
ES2650747T3 (es) 2018-01-22
KR101819401B1 (ko) 2018-01-16
US20190189138A1 (en) 2019-06-20
PL3312836T3 (pl) 2022-03-28
AU2014295313B2 (en) 2017-08-03
BR112016001247A2 (pt) 2017-07-25
ES2940897T3 (es) 2023-05-12
EP4369337A3 (en) 2024-06-26
JP2021170127A (ja) 2021-10-28
EP4191581A1 (en) 2023-06-07
EP3961621B1 (en) 2023-01-04
US20160140972A1 (en) 2016-05-19
EP4369337C0 (en) 2025-06-25
EP3025339A1 (en) 2016-06-01
MY184665A (en) 2021-04-15
AR097005A1 (es) 2016-02-10
CN110739001A (zh) 2020-01-31
TW201519219A (zh) 2015-05-16
PL3025339T3 (pl) 2018-02-28
PT3312836T (pt) 2021-12-30
CN105593934B (zh) 2019-11-12
EP2830058A1 (en) 2015-01-28
US11862182B2 (en) 2024-01-02
EP3961621A1 (en) 2022-03-02
JP6560320B2 (ja) 2019-08-14
EP4597491A2 (en) 2025-08-06
RU2016105704A (ru) 2017-08-23
EP4597491A3 (en) 2025-10-08
EP3312836A1 (en) 2018-04-25
EP3312836B1 (en) 2021-10-27
CN105593934A (zh) 2016-05-18
US10984809B2 (en) 2021-04-20
US12488804B2 (en) 2025-12-02
WO2015010965A1 (en) 2015-01-29
MX2016000913A (es) 2016-06-21
US10242682B2 (en) 2019-03-26
AU2014295313A1 (en) 2016-03-10
EP4191581B1 (en) 2024-03-27
JP2023126886A (ja) 2023-09-12
KR20160033755A (ko) 2016-03-28
PL4191581T3 (pl) 2024-07-22
PT3961621T (pt) 2023-03-31
TWI559294B (zh) 2016-11-21
CA2918849A1 (en) 2015-01-29
CA2918849C (en) 2019-05-21
JP7581434B2 (ja) 2024-11-12
JP2025014033A (ja) 2025-01-28
JP7799005B2 (ja) 2026-01-14
JP6911080B2 (ja) 2021-07-28
ES2983180T3 (es) 2024-10-22
JP2019207419A (ja) 2019-12-05
RU2654139C2 (ru) 2018-05-16
PL3961621T3 (pl) 2023-05-02
JP2018055117A (ja) 2018-04-05
JP6247759B2 (ja) 2017-12-13
EP3025339B1 (en) 2017-09-13
CN110739001B (zh) 2024-02-27
PT3025339T (pt) 2017-12-20
ZA201601115B (en) 2017-11-29
ES2902949T3 (es) 2022-03-30
EP4369337B1 (en) 2025-06-25
US20210233545A1 (en) 2021-07-29
BR112016001247B1 (pt) 2021-12-14
US20260065920A1 (en) 2026-03-05
JP2016532894A (ja) 2016-10-20
EP4191581C0 (en) 2024-03-27
EP4369337A2 (en) 2024-05-15
HK1254315A1 (en) 2019-07-19
ES3036069T3 (en) 2025-09-12
PL4369337T3 (pl) 2025-10-27
FI3961621T3 (fi) 2023-03-31

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