BR112015019525A2 - intensificação de sinal de áudio com o uso de parâmetros espaciais estimados - Google Patents

intensificação de sinal de áudio com o uso de parâmetros espaciais estimados

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Publication number
BR112015019525A2
BR112015019525A2 BR112015019525A BR112015019525A BR112015019525A2 BR 112015019525 A2 BR112015019525 A2 BR 112015019525A2 BR 112015019525 A BR112015019525 A BR 112015019525A BR 112015019525 A BR112015019525 A BR 112015019525A BR 112015019525 A2 BR112015019525 A2 BR 112015019525A2
Authority
BR
Brazil
Prior art keywords
frequency
frequency coefficients
coefficients
spatial parameters
audio signal
Prior art date
Application number
BR112015019525A
Other languages
English (en)
Other versions
BR112015019525B1 (pt
Inventor
a davidson Grant
Yen Kuan-Chieh
f davis Mark
Fellers Matthew
Melkote Vinay
Original Assignee
Dolby Laboratories Licensing Corp
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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of BR112015019525A2 publication Critical patent/BR112015019525A2/pt
Publication of BR112015019525B1 publication Critical patent/BR112015019525B1/pt

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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
    • G10L19/012—Comfort noise or silence 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band

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

resumo patente de invenção: "intensificação de sinal de áudio com o uso de parâmetros espaciais estimados". a presente invenção refere-se aos dados de áudio recebidos que podem incluir um primeiro conjunto de coeficientes de frequência e um segundo conjunto de coeficientes de frequência. os parâmetros espaciais para pelo menos parte do segundo conjunto de coeficientes de frequência podem ser estimados com base pelo menos em parte do primeiro conjunto de coeficientes de frequência. os parâmetros espaciais estimados podem ser aplicados ao segundo conjunto de coeficientes de frequência para gerar um segundo conjunto modificado de coeficientes de frequência. o primeiro conjunto de coeficientes de frequência pode corresponder a uma primeira faixa de frequência (por exemplo, uma faixa de frequência de canal individual) e o segundo conjunto de coeficientes de frequência podem corresponder a uma segunda faixa de frequência (por exemplo, uma faixa de frequência de canal acoplado). os coeficientes de frequência combinados de um canal de acoplamento de composto podem ter como base os coeficientes de frequência dentre dois ou mais canais. os coeficientes de correlação cruzada, entre os coeficientes de frequência de um primeiro canal e os coeficientes de frequência combinados, podem ser computados.
BR112015019525-3A 2013-02-14 2014-01-22 Método, aparelho e mídia não transitória que possui um método armazenado na mesma. BR112015019525B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361764869P 2013-02-14 2013-02-14
US61/764,869 2013-02-14
PCT/US2014/012457 WO2014126683A1 (en) 2013-02-14 2014-01-22 Audio signal enhancement using estimated spatial parameters

Publications (2)

Publication Number Publication Date
BR112015019525A2 true BR112015019525A2 (pt) 2017-07-18
BR112015019525B1 BR112015019525B1 (pt) 2021-12-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015019525-3A BR112015019525B1 (pt) 2013-02-14 2014-01-22 Método, aparelho e mídia não transitória que possui um método armazenado na mesma.

Country Status (22)

Country Link
US (1) US9489956B2 (pt)
EP (1) EP2956934B1 (pt)
JP (1) JP6138279B2 (pt)
KR (1) KR101724319B1 (pt)
CN (1) CN105900168B (pt)
AR (1) AR094775A1 (pt)
AU (1) AU2014216732B2 (pt)
BR (1) BR112015019525B1 (pt)
CA (1) CA2898271C (pt)
CL (1) CL2015002277A1 (pt)
DK (1) DK2956934T3 (pt)
HK (1) HK1218674A1 (pt)
HU (1) HUE032018T2 (pt)
IL (1) IL239945B (pt)
IN (1) IN2015MN01955A (pt)
MX (1) MX344170B (pt)
PL (1) PL2956934T3 (pt)
RU (1) RU2620714C2 (pt)
SG (1) SG11201506129PA (pt)
TW (1) TWI618051B (pt)
UA (1) UA113682C2 (pt)
WO (1) WO2014126683A1 (pt)

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Also Published As

Publication number Publication date
EP2956934A1 (en) 2015-12-23
IL239945A0 (en) 2015-08-31
RU2620714C2 (ru) 2017-05-29
CA2898271A1 (en) 2014-08-21
AU2014216732B2 (en) 2017-04-20
EP2956934B1 (en) 2017-01-04
BR112015019525B1 (pt) 2021-12-14
KR101724319B1 (ko) 2017-04-07
IN2015MN01955A (pt) 2015-08-28
CN105900168B (zh) 2019-12-06
MX344170B (es) 2016-12-07
HK1218674A1 (zh) 2017-03-03
TW201447867A (zh) 2014-12-16
SG11201506129PA (en) 2015-09-29
JP6138279B2 (ja) 2017-05-31
UA113682C2 (xx) 2017-02-27
CN105900168A (zh) 2016-08-24
PL2956934T3 (pl) 2017-05-31
JP2016510569A (ja) 2016-04-07
CL2015002277A1 (es) 2016-02-05
IL239945B (en) 2019-02-28
KR20150109400A (ko) 2015-10-01
WO2014126683A1 (en) 2014-08-21
DK2956934T3 (en) 2017-02-27
HUE032018T2 (en) 2017-08-28
MX2015010166A (es) 2015-12-09
CA2898271C (en) 2019-02-19
AR094775A1 (es) 2015-08-26
RU2015133584A (ru) 2017-02-21
US9489956B2 (en) 2016-11-08
US20160005413A1 (en) 2016-01-07
TWI618051B (zh) 2018-03-11
AU2014216732A1 (en) 2015-07-30

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