BR112018008874A2 - aparelho e método de decodificação, e, programa. - Google Patents

aparelho e método de decodificação, e, programa.

Info

Publication number
BR112018008874A2
BR112018008874A2 BR112018008874-9A BR112018008874A BR112018008874A2 BR 112018008874 A2 BR112018008874 A2 BR 112018008874A2 BR 112018008874 A BR112018008874 A BR 112018008874A BR 112018008874 A2 BR112018008874 A2 BR 112018008874A2
Authority
BR
Brazil
Prior art keywords
decoding
streams
limit position
processing unit
bits
Prior art date
Application number
BR112018008874-9A
Other languages
English (en)
Japanese (ja)
Other versions
BR112018008874A8 (pt
Inventor
Hatanaka Mitsuyuki
Chinen Toru
Tsuji Minoru
Honma Hiroyuki
Original Assignee
Sony Corporation
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 Sony Corporation filed Critical Sony Corporation
Publication of BR112018008874A2 publication Critical patent/BR112018008874A2/pt
Publication of BR112018008874A8 publication Critical patent/BR112018008874A8/pt

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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/0212—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 using orthogonal transformation
    • 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

a presente invenção refere-se a um dispositivo de decodificação, a um método de decodificação e a um programa configurados para ser capaz para alternativamente decodificar e transmitir, tão rapidamente quanto possível, uma pluralidade de fluxos contínuos de bits de áudio codificados para os quais a temporização de reprodução é sincronizada. o dispositivo de decodificação, que é um aspecto da presente invenção, é provido com: uma unidade de aquisição para aquisição da pluralidade de fluxos contínuos de bits de áudio codificados; uma unidade de seleção para determinar uma posição limite para comutar a saída da pluralidade de fluxos contínuos de bits de áudio codificados, e seletivamente suprir para uma unidade de processamento de decodificação de acordo com a posição limite um da pluralidade de fluxos contínuos de bits de áudio codificados adquiridos; e a unidade de processamento de decodificação para realizar um processo de decodificação, que inclui processamento imdct, em um fluxo contínuo de bits que foi inserido por meio da unidade de seleção, a unidade de processamento de decodificação eliminando a adição de sobreposição do processo imdct que corresponde a cada um dos quadros que precedem e seguem a posição limite. a presente invenção é aplicável, por exemplo, em um dispositivo de recepção, um dispositivo de reprodução e semelhantes.
BR112018008874A 2015-11-09 2016-10-26 aparelho e método de decodificação, e, programa. BR112018008874A8 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2015219415 2015-11-09
JP2015-219415 2015-11-09
PCT/JP2016/081699 WO2017082050A1 (ja) 2015-11-09 2016-10-26 デコード装置、デコード方法、およびプログラム

Publications (2)

Publication Number Publication Date
BR112018008874A2 true BR112018008874A2 (pt) 2018-11-06
BR112018008874A8 BR112018008874A8 (pt) 2019-02-26

Family

ID=58695167

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018008874A BR112018008874A8 (pt) 2015-11-09 2016-10-26 aparelho e método de decodificação, e, programa.

Country Status (8)

Country Link
US (1) US10553230B2 (pt)
EP (1) EP3376500B1 (pt)
JP (1) JP6807033B2 (pt)
KR (1) KR20180081504A (pt)
CN (1) CN108352165B (pt)
BR (1) BR112018008874A8 (pt)
RU (1) RU2718418C2 (pt)
WO (1) WO2017082050A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10424311B2 (en) 2017-01-30 2019-09-24 Cirrus Logic, Inc. Auto-mute audio processing
CN110730408A (zh) * 2019-11-11 2020-01-24 北京达佳互联信息技术有限公司 一种音频参数切换方法、装置、电子设备及存储介质

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Also Published As

Publication number Publication date
BR112018008874A8 (pt) 2019-02-26
EP3376500B1 (en) 2019-08-21
CN108352165B (zh) 2023-02-03
CN108352165A (zh) 2018-07-31
US10553230B2 (en) 2020-02-04
RU2718418C2 (ru) 2020-04-02
US20180286419A1 (en) 2018-10-04
KR20180081504A (ko) 2018-07-16
EP3376500A1 (en) 2018-09-19
RU2018115550A (ru) 2019-10-28
JP6807033B2 (ja) 2021-01-06
RU2018115550A3 (pt) 2020-01-31
EP3376500A4 (en) 2018-09-19
JPWO2017082050A1 (ja) 2018-08-30
WO2017082050A1 (ja) 2017-05-18

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time