BRPI0913460A2 - Aparelho, método e programa de computador para prover um conjunto de indicadores espaciais na base de um sinal de microfone e aparelho para prover um sinal de áudio de dois canais e um conjunto de indicadores espaciais - Google Patents

Aparelho, método e programa de computador para prover um conjunto de indicadores espaciais na base de um sinal de microfone e aparelho para prover um sinal de áudio de dois canais e um conjunto de indicadores espaciais

Info

Publication number
BRPI0913460A2
BRPI0913460A2 BRPI0913460A BRPI0913460A BRPI0913460A2 BR PI0913460 A2 BRPI0913460 A2 BR PI0913460A2 BR PI0913460 A BRPI0913460 A BR PI0913460A BR PI0913460 A BRPI0913460 A BR PI0913460A BR PI0913460 A2 BRPI0913460 A2 BR PI0913460A2
Authority
BR
Brazil
Prior art keywords
providing
spatial
information
microphone signal
basis
Prior art date
Application number
BRPI0913460A
Other languages
English (en)
Inventor
Faller Christof
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 BRPI0913460A2 publication Critical patent/BRPI0913460A2/pt
Publication of BRPI0913460B1 publication Critical patent/BRPI0913460B1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

APARELHO, MÉTODO E PROGRAMA DE COMPUTADOR PARA PROVER UM CONJUNTO DE INDICADORES ESPACIAIS NA BASE DE UM SINAL DE MICROFONE E APARELHO PARA PROVER UM SINAL DE ÁUDIO DE DOIS CANAIS E UM CONJUNTO DE INDICADORES ESPACIAIS. Aparelho pra prover um conjunto de indicadores espaciais associado a um sinal de áudio upmix tendo mais que dois canais na base de um sinal de microfone de dois canais que compreende um analisador de sinal e um gerador de informações paralelas espaciais. O analisador de sinal é configurados para obter uma informação de energiado componente e um informação de direção na base do sinal de microfone de dois, canais, de maneira que a informação de energia do componente descreva estimativas de energia do componente e uma informação de direção na base do sinal de microfone de dois canais, de maneira que a informação de energia do componente descreva estimativas de energias de um componente de som direto do sinal de microfone de dois canais e de um componente de som difuso do sinal de microfone de dois canais, e de maneira que a informação direcional descreva uma estimativa de uma direção da qual o componente de som direto do sinal de microfone de dois canais é originado. O gerador de informações paralelas espaciais é configurado para mapear a informação de energia do componente e a informação de direção em uma informação de indicador espacial que descreve o conjunto de indicadores espaciais associado a um sinal de áugio upmix tendo mais que dois canais.
BRPI0913460-3A 2008-09-11 2009-09-04 Aparelho e método para prover um conjunto de indicadores espaciais na base de um sinal de microfone e aparelho para prover um sinal de áudio de dois canais e um conjunto de indicadores espaciais BRPI0913460B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9596208P 2008-09-11 2008-09-11
US61/095,962 2008-09-11
PCT/EP2009/006457 WO2010028784A1 (en) 2008-09-11 2009-09-04 Apparatus, method and computer program for providing a set of spatial cues on the basis of a microphone signal and apparatus for providing a two-channel audio signal and a set of spatial cues

Publications (2)

Publication Number Publication Date
BRPI0913460A2 true BRPI0913460A2 (pt) 2023-03-28
BRPI0913460B1 BRPI0913460B1 (pt) 2024-03-05

Family

ID=41395014

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0913460-3A BRPI0913460B1 (pt) 2008-09-11 2009-09-04 Aparelho e método para prover um conjunto de indicadores espaciais na base de um sinal de microfone e aparelho para prover um sinal de áudio de dois canais e um conjunto de indicadores espaciais

Country Status (11)

Country Link
US (2) US8023660B2 (pt)
EP (1) EP2347410B1 (pt)
JP (1) JP5520300B2 (pt)
KR (2) KR101392546B1 (pt)
CN (1) CN102209988B (pt)
AU (1) AU2009291259B2 (pt)
BR (1) BRPI0913460B1 (pt)
CA (1) CA2736709C (pt)
MX (1) MX2011002626A (pt)
RU (1) RU2493617C2 (pt)
WO (1) WO2010028784A1 (pt)

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Also Published As

Publication number Publication date
CN102209988B (zh) 2014-01-08
US9183839B2 (en) 2015-11-10
BRPI0913460B1 (pt) 2024-03-05
WO2010028784A1 (en) 2010-03-18
KR20110063826A (ko) 2011-06-14
AU2009291259A1 (en) 2010-03-18
JP5520300B2 (ja) 2014-06-11
CA2736709C (en) 2016-11-01
MX2011002626A (es) 2011-04-07
RU2493617C2 (ru) 2013-09-20
US20110299702A1 (en) 2011-12-08
CA2736709A1 (en) 2010-03-18
US20100061558A1 (en) 2010-03-11
EP2347410B1 (en) 2018-04-11
AU2009291259B2 (en) 2013-10-31
CN102209988A (zh) 2011-10-05
JP2012502570A (ja) 2012-01-26
KR101296757B1 (ko) 2013-08-14
KR20130031923A (ko) 2013-03-29
EP2347410A1 (en) 2011-07-27
KR101392546B1 (ko) 2014-05-08
US8023660B2 (en) 2011-09-20
RU2011113850A (ru) 2012-10-20

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