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AR097005A1 - Dominio de frecuencia de codificación de audio que soporta la conmutación de longitud de transformación - Google Patents

Dominio de frecuencia de codificación de audio que soporta la conmutación de longitud de transformación

Info

Publication number
AR097005A1
AR097005A1 ARP140102708A ARP140102708A AR097005A1 AR 097005 A1 AR097005 A1 AR 097005A1 AR P140102708 A ARP140102708 A AR P140102708A AR P140102708 A ARP140102708 A AR P140102708A AR 097005 A1 AR097005 A1 AR 097005A1
Authority
AR
Argentina
Prior art keywords
frequency domain
signaling
decoders
manner
thanks
Prior art date
Application number
ARP140102708A
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 AR097005A1 publication Critical patent/AR097005A1/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 codec de audio en el dominio de las frecuencias con la capacidad de soportar adicionalmente una determinada longitud de transformada de una manera inversamente compatible, gracias a lo siguiente: los coeficientes del dominio de las frecuencias de un marco respectivo son transmitidos de una manera entrelazada independientemente de la señalización que señala los marcos en cuanto a cual longitud de transformada rige realmente, y adicionalmente la extracción de los coeficientes del dominio de las frecuencias y la extracción de factores de escala operan independientemente de la señalización. Gracias a esta medida, los codificadores/decodificador de audio en el dominio de las frecuencias, anticuados, no sensibles a la señalización, serían sin embargo capaces de operar sin defectos y reproduciendo una calidad razonable. Al mismo tiempo, los codificadores / decodificadores de audio en el dominio de la frecuencias capaces de soportar la longitud de transformada adicional ofrecerían una calidad aún superior a pesar de la compatibilidad inversa. En lo que se refiere a las penalizaciones en la eficiencia de la codificación debidas a la codificación de los coeficientes del dominio de las frecuencias de una manera transparente para decodificadores más antiguos, las mismas son de una naturaleza comparativamente menor debido al entrelazado.
ARP140102708A 2013-07-22 2014-07-21 Dominio de frecuencia de codificación de audio que soporta la conmutación de longitud de transformación AR097005A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13177373 2013-07-22

Publications (1)

Publication Number Publication Date
AR097005A1 true AR097005A1 (es) 2016-02-10

Family

ID=48808222

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP140102708A AR097005A1 (es) 2013-07-22 2014-07-21 Dominio de frecuencia de codificación de audio que soporta la conmutación de longitud de transformación

Country Status (20)

Country Link
US (4) US10242682B2 (es)
EP (7) EP2830058A1 (es)
JP (6) JP6247759B2 (es)
KR (1) KR101819401B1 (es)
CN (2) CN110739001B (es)
AR (1) AR097005A1 (es)
AU (1) AU2014295313B2 (es)
BR (1) BR112016001247B1 (es)
CA (1) CA2918849C (es)
ES (5) ES2650747T3 (es)
FI (1) FI3961621T3 (es)
MX (1) MX357694B (es)
MY (1) MY184665A (es)
PL (5) PL3961621T3 (es)
PT (3) PT3312836T (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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Also Published As

Publication number Publication date
JP2018055117A (ja) 2018-04-05
RU2016105704A (ru) 2017-08-23
HK1254315A1 (en) 2019-07-19
US20210233545A1 (en) 2021-07-29
SG11201600369UA (en) 2016-02-26
KR101819401B1 (ko) 2018-01-16
EP4597491A3 (en) 2025-10-08
PL3961621T3 (pl) 2023-05-02
ES3036069T3 (en) 2025-09-12
CA2918849C (en) 2019-05-21
EP4369337A2 (en) 2024-05-15
EP4191581A1 (en) 2023-06-07
PT3312836T (pt) 2021-12-30
KR20160033755A (ko) 2016-03-28
EP4369337B1 (en) 2025-06-25
ZA201601115B (en) 2017-11-29
MX2016000913A (es) 2016-06-21
JP2019207419A (ja) 2019-12-05
PL4369337T3 (pl) 2025-10-27
ES2940897T3 (es) 2023-05-12
EP4597491A2 (en) 2025-08-06
MY184665A (en) 2021-04-15
EP3961621B1 (en) 2023-01-04
US20160140972A1 (en) 2016-05-19
US10242682B2 (en) 2019-03-26
JP6911080B2 (ja) 2021-07-28
PT3025339T (pt) 2017-12-20
BR112016001247A2 (pt) 2017-07-25
EP3961621A1 (en) 2022-03-02
CN105593934A (zh) 2016-05-18
EP4191581B1 (en) 2024-03-27
JP7311940B2 (ja) 2023-07-20
CN110739001A (zh) 2020-01-31
CA2918849A1 (en) 2015-01-29
JP2016532894A (ja) 2016-10-20
PL4191581T3 (pl) 2024-07-22
US20240127836A1 (en) 2024-04-18
RU2654139C2 (ru) 2018-05-16
EP4369337A3 (en) 2024-06-26
WO2015010965A1 (en) 2015-01-29
US10984809B2 (en) 2021-04-20
US12488804B2 (en) 2025-12-02
JP6560320B2 (ja) 2019-08-14
EP4191581C0 (en) 2024-03-27
EP3312836A1 (en) 2018-04-25
EP3025339A1 (en) 2016-06-01
ES2983180T3 (es) 2024-10-22
US20190189138A1 (en) 2019-06-20
AU2014295313B2 (en) 2017-08-03
PT3961621T (pt) 2023-03-31
CN105593934B (zh) 2019-11-12
US11862182B2 (en) 2024-01-02
BR112016001247B1 (pt) 2021-12-14
TWI559294B (zh) 2016-11-21
CN110739001B (zh) 2024-02-27
PL3312836T3 (pl) 2022-03-28
ES2650747T3 (es) 2018-01-22
JP2025014033A (ja) 2025-01-28
EP4369337C0 (en) 2025-06-25
EP3025339B1 (en) 2017-09-13
JP2021170127A (ja) 2021-10-28
FI3961621T3 (fi) 2023-03-31
JP7799005B2 (ja) 2026-01-14
EP2830058A1 (en) 2015-01-28
ES2902949T3 (es) 2022-03-30
JP2023126886A (ja) 2023-09-12
JP6247759B2 (ja) 2017-12-13
EP3312836B1 (en) 2021-10-27
JP7581434B2 (ja) 2024-11-12
MX357694B (es) 2018-07-19
AU2014295313A1 (en) 2016-03-10
PL3025339T3 (pl) 2018-02-28
TW201519219A (zh) 2015-05-16

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