MX2023000341A - Cuantificador de audio y descuantificador de audio y metodos relacionados. - Google Patents

Cuantificador de audio y descuantificador de audio y metodos relacionados.

Info

Publication number
MX2023000341A
MX2023000341A MX2023000341A MX2023000341A MX2023000341A MX 2023000341 A MX2023000341 A MX 2023000341A MX 2023000341 A MX2023000341 A MX 2023000341A MX 2023000341 A MX2023000341 A MX 2023000341A MX 2023000341 A MX2023000341 A MX 2023000341A
Authority
MX
Mexico
Prior art keywords
audio
quantizer
stage vector
items
quantization result
Prior art date
Application number
MX2023000341A
Other languages
English (en)
Inventor
Stefan Döhla
Eleni Fotopoulou
Franz Reutelhuber
Goran Markovic
EMMANUEL, (FINADO) Ravelli
Jan Frederik Kiene
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 MX2023000341A publication Critical patent/MX2023000341A/es

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
    • G10L19/008—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 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
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • G10L19/04—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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/04—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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation

Abstract

Un cuantificador de audio para cuantificar una pluralidad de elementos de información de audio, comprende: un cuantificador de vector de primera etapa (141, 143) para cuantificar la pluralidad de elementos de información de audio para determinar un resultado de cuantificación de vector de primera etapa y una pluralidad de elementos cuantificados intermedios correspondientes al resultado de cuantificación de vector de primera etapa; un determinador de elemento residual (142) para calcular una pluralidad de elementos residuales de la pluralidad de elementos cuantificados intermedios y la pluralidad de elementos de información de audio; y un cuantificador de vector de segunda etapa (145) para cuantificar la pluralidad de elementos residuales para obtener un resultado de cuantificación de vector de segunda etapa, en donde el resultado de cuantificación de vector de primera etapa y el resultado de cuantificación de vector de segunda etapa son una representación cuantificada de la pluralidad de elementos de información de audio.
MX2023000341A 2020-07-07 2021-07-05 Cuantificador de audio y descuantificador de audio y metodos relacionados. MX2023000341A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20184555 2020-07-07
PCT/EP2021/068527 WO2022008454A1 (en) 2020-07-07 2021-07-05 Audio quantizer and audio dequantizer and related methods

Publications (1)

Publication Number Publication Date
MX2023000341A true MX2023000341A (es) 2023-03-14

Family

ID=71661617

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2023000340A MX2023000340A (es) 2020-07-07 2021-07-05 Decodificador de audio, codificador de audio y metodos relacionados que utilizan codificacion conjunta de parametros de escala para canales de una se?al de audio multicanal.
MX2023000341A MX2023000341A (es) 2020-07-07 2021-07-05 Cuantificador de audio y descuantificador de audio y metodos relacionados.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
MX2023000340A MX2023000340A (es) 2020-07-07 2021-07-05 Decodificador de audio, codificador de audio y metodos relacionados que utilizan codificacion conjunta de parametros de escala para canales de una se?al de audio multicanal.

Country Status (12)

Country Link
US (2) US20230133513A1 (es)
EP (2) EP4179531A1 (es)
JP (2) JP2023532808A (es)
KR (2) KR20230043876A (es)
CN (2) CN116114016A (es)
AU (2) AU2021306852A1 (es)
BR (2) BR112023000223A2 (es)
CA (2) CA3184522A1 (es)
MX (2) MX2023000340A (es)
TW (2) TW202209303A (es)
WO (2) WO2022008448A1 (es)
ZA (1) ZA202213859B (es)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966688A (en) * 1997-10-28 1999-10-12 Hughes Electronics Corporation Speech mode based multi-stage vector quantizer
US7539612B2 (en) * 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
BR112013020592B1 (pt) 2011-02-14 2021-06-22 Fraunhofer-Gellschaft Zur Fôrderung Der Angewandten Forschung E. V. Codec de áudio utilizando síntese de ruído durante fases inativas
WO2019091573A1 (en) * 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters

Also Published As

Publication number Publication date
EP4179529A1 (en) 2023-05-17
CN115843378A (zh) 2023-03-24
AU2021303726A1 (en) 2023-02-09
EP4179531A1 (en) 2023-05-17
JP2023532808A (ja) 2023-07-31
CA3184522A1 (en) 2022-01-13
ZA202213859B (en) 2023-10-25
US20230133513A1 (en) 2023-05-04
MX2023000340A (es) 2023-02-09
US20230197090A1 (en) 2023-06-22
CA3184222A1 (en) 2022-01-13
JP2023532809A (ja) 2023-07-31
KR20230066547A (ko) 2023-05-16
BR112023000223A2 (pt) 2023-01-31
WO2022008448A1 (en) 2022-01-13
TW202211208A (zh) 2022-03-16
AU2021306852A1 (en) 2023-02-02
CN116114016A (zh) 2023-05-12
WO2022008454A1 (en) 2022-01-13
BR112022026703A2 (pt) 2023-01-24
TWI793666B (zh) 2023-02-21
KR20230043876A (ko) 2023-03-31
TW202209303A (zh) 2022-03-01

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