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AR101578A1 - 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
AR101578A1
AR101578A1 ARP150102651A ARP150102651A AR101578A1 AR 101578 A1 AR101578 A1 AR 101578A1 AR P150102651 A ARP150102651 A AR P150102651A AR P150102651 A ARP150102651 A AR P150102651A AR 101578 A1 AR101578 A1 AR 101578A1
Authority
AR
Argentina
Prior art keywords
audio
memory
audio frame
memories
decoded
Prior art date
Application number
ARP150102651A
Other languages
English (en)
Inventor
Schnell Markus
Ravelli Emmanuel
Pietrzyk Grzegorz
Multrus Markus
Grill Bernhard
Fuchs Guillaume
Doehla 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 AR101578A1 publication Critical patent/AR101578A1/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 parámetros para producir uno o mas parámetros 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 síntesis para producir la trama de audio decodificada mediante la síntesis del uno o más parámetros de audio para la trama de audio decodificada; un dispositivo de memoria que comprende una o más memorias, donde cada una de las memorias está 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 más memorias es usado por el dispositivo de filtro de síntesis para sintetizar el uno o más parámetros 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 más parámetros de audio para la trama de audio decodificada, que tiene una tasa de muestreo, para una o más de dichas memorias mediante el remuestreo de un estado de memoria precedente para sintetizar uno o más parámetros 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 más de dichas memorias y almacenar el estado de la memoria para sintetizar el uno o más parámetros de audio para la trama de audio decodificada para una o más de dichas memorias en la respectiva memoria.
ARP150102651A 2014-08-18 2015-08-18 Concepto para el cambio de las tasas de muestreo en los dispositivos de procesamiento de audio AR101578A1 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
AR101578A1 true AR101578A1 (es) 2016-12-28

Family

ID=51352467

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP150102651A AR101578A1 (es) 2014-08-18 2015-08-18 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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EP3483882A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
EP3483878A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder supporting a set of different loss concealment tools
EP3483880A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
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
MX2017002108A (es) 2017-05-12
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
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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