BR112018016247A2 - codificação de múltiplos sinais de áudio - Google Patents

codificação de múltiplos sinais de áudio

Info

Publication number
BR112018016247A2
BR112018016247A2 BR112018016247-7A BR112018016247A BR112018016247A2 BR 112018016247 A2 BR112018016247 A2 BR 112018016247A2 BR 112018016247 A BR112018016247 A BR 112018016247A BR 112018016247 A2 BR112018016247 A2 BR 112018016247A2
Authority
BR
Brazil
Prior art keywords
channel
encoder
frequency domain
perform
destination
Prior art date
Application number
BR112018016247-7A
Other languages
English (en)
Inventor
Subrahmanyam Chandra Sekhar Chebiyyam Venkata
Atti Venkatraman
Original Assignee
Qualcomm Incorporated
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 Qualcomm Incorporated filed Critical Qualcomm Incorporated
Publication of BR112018016247A2 publication Critical patent/BR112018016247A2/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
    • G10L19/008—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
    • G10L19/0212—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
    • 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
    • G10L19/02—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
    • G10L19/0204—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 subband decomposition
    • G10L19/0208—Subband vocoders

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)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

um dispositivo inclui um codificador e um transmissor. o codificador é configurado para determinar um valor de discordância indicativo de uma quantidade de discordância temporal entre um canal de referência e um canal de destino. o codificador também é configurado para determinar se executa ou não uma primeira operação de deslocamento temporal no canal de destino, pelo menos com base no valor de discordância e um modo de codificação para gerar um canal de destino ajustado. o codificador é adicionalmente configurado para executar uma primeira operação de transformada no canal de referência para gerar um canal de referência de domínio de frequência e realizar uma segunda operação de transformada no canal de destino ajustado para gerar um canal de destino ajustado no domínio de frequência. o codificador também é configurado para estimar uma ou mais pistas estéreo com base no canal de referência de domínio de frequência e no canal de destino ajustado no domínio de frequência. o transmissor é configurado para transmitir uma ou mais pistas estéreo para um receptor.
BR112018016247-7A 2016-02-12 2017-02-03 codificação de múltiplos sinais de áudio BR112018016247A2 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201662294946P 2016-02-12 2016-02-12
US62/294,946 2016-02-12
US15/422,988 US9978381B2 (en) 2016-02-12 2017-02-02 Encoding of multiple audio signals
US15/422,988 2017-02-02
PCT/US2017/016418 WO2017139190A1 (en) 2016-02-12 2017-02-03 Encoding of multiple audio signals

Publications (1)

Publication Number Publication Date
BR112018016247A2 true BR112018016247A2 (pt) 2018-12-18

Family

ID=59561681

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018016247-7A BR112018016247A2 (pt) 2016-02-12 2017-02-03 codificação de múltiplos sinais de áudio

Country Status (10)

Country Link
US (1) US9978381B2 (pt)
EP (1) EP3414760B1 (pt)
JP (1) JP6856655B2 (pt)
KR (1) KR102230623B1 (pt)
CN (1) CN108701464B (pt)
BR (1) BR112018016247A2 (pt)
CA (1) CA3011741C (pt)
ES (1) ES2821676T3 (pt)
TW (1) TWI651716B (pt)
WO (1) WO2017139190A1 (pt)

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Also Published As

Publication number Publication date
US9978381B2 (en) 2018-05-22
JP6856655B2 (ja) 2021-04-07
CN108701464A (zh) 2018-10-23
EP3414760A1 (en) 2018-12-19
KR20180111846A (ko) 2018-10-11
WO2017139190A1 (en) 2017-08-17
TWI651716B (zh) 2019-02-21
CA3011741C (en) 2023-01-10
CN108701464B (zh) 2023-04-04
KR102230623B1 (ko) 2021-03-19
JP2019505017A (ja) 2019-02-21
US20170236521A1 (en) 2017-08-17
ES2821676T3 (es) 2021-04-27
CA3011741A1 (en) 2017-08-17
EP3414760B1 (en) 2020-07-01
TW201732779A (zh) 2017-09-16

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