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MX2017002108A - Concepto para el cambio de las tasas de muestreo en los dispositivos de procesamiento de audio. - Google Patents

Concepto para el cambio de las tasas de muestreo en los dispositivos de procesamiento de audio.

Info

Publication number
MX2017002108A
MX2017002108A MX2017002108A MX2017002108A MX2017002108A MX 2017002108 A MX2017002108 A MX 2017002108A MX 2017002108 A MX2017002108 A MX 2017002108A MX 2017002108 A MX2017002108 A MX 2017002108A MX 2017002108 A MX2017002108 A MX 2017002108A
Authority
MX
Mexico
Prior art keywords
audio
memory
audio frame
memories
decoded
Prior art date
Application number
MX2017002108A
Other languages
English (en)
Other versions
MX360557B (es
Inventor
Schnell Markus
Ravelli Emmanuel
Pietrzyk Grzegorz
Multrus Markus
Grill Bernhard
Fuchs Guillaume
Döhla Stefan
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 MX2017002108A publication Critical patent/MX2017002108A/es
Publication of MX360557B publication Critical patent/MX360557B/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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L19/16—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 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
    • G10L2019/0001—Codebooks
    • G10L2019/0002—Codebook adaptations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Dispositivo decodificador de audio para decodificar a corriente de bits, el dispositivo decodificador de audio que comprende: un decodificador predictivo para producir una trama de audio decodificada a partir de la corriente de bits, donde el decodificador predictivo comprende un decodificador de parametros para producir uno o mas parametros de audio para la trama de audio decodificada a partir de la corriente de bits y donde el decodificador predictivo comprende un dispositivo de filtro de sintesis para producir la trama de audio decodificada mediante la sintesis del uno o mas parametros de audio para la trama de audio decodificada; un dispositivo de memoria que comprende una o mas memorias, donde cada una de las memorias esta configurada para almacenar un estado de la memoria para la trama de audio decodificada, donde el estado de la memoria para la trama de audio decodificada de la una o mas memorias es usado por el dispositivo de filtro de sintesis para sintetizar el uno o mas parametros de audio para la trama de audio decodificada; y un dispositivo de remuestreo del estado de la memoria configurado para determinar el estado de la memoria para sintetizar el uno o mas parametros de audio para la trama de audio decodificada, que tiene una tasa de muestreo, para una o mas de dichas memorias mediante el remuestreo de un estado de memoria precedente para sintetizar uno o mas parametros de audio para una trama de audio decodificada precedente, que tiene una tasa de muestreo precedente que es diferente de la tasa de muestreo de la trama de audio decodificada, para una o mas de dichas memorias y almacenar el estado de la memoria para sintetizar el uno o mas parametros de audio para la trama de audio decodificada para una o mas de dichas memorias en la respectiva memoria.
MX2017002108A 2014-08-18 2015-08-14 Concepto para el cambio de las tasas de muestreo en los dispositivos de procesamiento de audio. MX360557B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14181307.1A EP2988300A1 (en) 2014-08-18 2014-08-18 Switching of sampling rates at audio processing devices
PCT/EP2015/068778 WO2016026788A1 (en) 2014-08-18 2015-08-14 Concept for switching of sampling rates at audio processing devices

Publications (2)

Publication Number Publication Date
MX2017002108A true MX2017002108A (es) 2017-05-12
MX360557B MX360557B (es) 2018-11-07

Family

ID=51352467

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017002108A MX360557B (es) 2014-08-18 2015-08-14 Concepto para el cambio de las tasas de muestreo en los dispositivos de procesamiento de audio.

Country Status (18)

Country Link
US (3) US10783898B2 (es)
EP (4) EP2988300A1 (es)
JP (1) JP6349458B2 (es)
KR (1) KR102120355B1 (es)
CN (2) CN113724719B (es)
AR (1) AR101578A1 (es)
AU (1) AU2015306260B2 (es)
BR (1) BR112017002947B1 (es)
CA (1) CA2957855C (es)
ES (3) ES3049391T3 (es)
MX (1) MX360557B (es)
MY (1) MY187283A (es)
PL (2) PL3183729T3 (es)
PT (1) PT3183729T (es)
RU (1) RU2690754C2 (es)
SG (1) SG11201701267XA (es)
TW (1) TWI587291B (es)
WO (1) WO2016026788A1 (es)

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EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
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Also Published As

Publication number Publication date
US20170154635A1 (en) 2017-06-01
MY187283A (en) 2021-09-19
RU2017108839A (ru) 2018-09-20
TWI587291B (zh) 2017-06-11
EP4328908A3 (en) 2024-03-13
EP4328908C0 (en) 2025-09-17
CA2957855C (en) 2020-05-12
CN113724719B (zh) 2023-08-08
MX360557B (es) 2018-11-07
PT3183729T (pt) 2020-12-04
CN106663443B (zh) 2021-06-29
JP6349458B2 (ja) 2018-06-27
AU2015306260A1 (en) 2017-03-09
US20230022258A1 (en) 2023-01-26
JP2017528759A (ja) 2017-09-28
EP3739580B1 (en) 2024-04-17
RU2017108839A3 (es) 2018-09-20
BR112017002947B1 (pt) 2021-02-17
EP3183729A1 (en) 2017-06-28
PL3739580T3 (pl) 2024-09-02
RU2690754C2 (ru) 2019-06-05
CN113724719A (zh) 2021-11-30
ES2828949T3 (es) 2021-05-28
US20200381001A1 (en) 2020-12-03
KR102120355B1 (ko) 2020-06-08
EP3739580A1 (en) 2020-11-18
EP3739580C0 (en) 2024-04-17
AU2015306260B2 (en) 2018-10-18
CA2957855A1 (en) 2016-02-25
EP3183729B1 (en) 2020-09-02
AR101578A1 (es) 2016-12-28
EP2988300A1 (en) 2016-02-24
WO2016026788A1 (en) 2016-02-25
EP4328908B1 (en) 2025-09-17
US11830511B2 (en) 2023-11-28
US11443754B2 (en) 2022-09-13
BR112017002947A2 (pt) 2017-12-05
KR20170041827A (ko) 2017-04-17
PL3183729T3 (pl) 2021-03-08
SG11201701267XA (en) 2017-03-30
ES3049391T3 (en) 2025-12-16
CN106663443A (zh) 2017-05-10
TW201612896A (en) 2016-04-01
ES2980944T3 (es) 2024-10-03
EP4328908A2 (en) 2024-02-28
US10783898B2 (en) 2020-09-22

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