BR112018007276A2 - aparelho, método ou programa de computador para gerar uma descrição de campo de som - Google Patents

aparelho, método ou programa de computador para gerar uma descrição de campo de som

Info

Publication number
BR112018007276A2
BR112018007276A2 BR112018007276-1A BR112018007276A BR112018007276A2 BR 112018007276 A2 BR112018007276 A2 BR 112018007276A2 BR 112018007276 A BR112018007276 A BR 112018007276A BR 112018007276 A2 BR112018007276 A2 BR 112018007276A2
Authority
BR
Brazil
Prior art keywords
time
sound field
sound
generating
frequency
Prior art date
Application number
BR112018007276-1A
Other languages
English (en)
Inventor
Emanuel Habets
Oliver Thiergart
Fabian KÜCH
Alexander NIEDERLEITNER
Affan-Hasan KHAN
Dirk Mahne
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
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-Gesellschaft zur Förderung der angewandten Forschung e. V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
Publication of BR112018007276A2 publication Critical patent/BR112018007276A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
    • 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
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

um aparelho para gerar uma descrição do campo de som, tendo uma representação de componentes do campo de som, compreende um determinador de direção (102) para determinar uma ou mais direção(ões) de som para cada porção de tempo-frequência de uma pluralidade de porções de tempo-frequência de uma pluralidade de sinais de microfone; um avaliador de função de base espacial (103) para avaliar, para cada porção de tempo-frequência da pluralidade de porções de tempo-frequência, uma ou mais função(ões) de base espacial utilizando uma ou mais das direções de som; e uma calculadora de componente de campo de som (201) para calcular, para cada porção de tempo-frequência da pluralidade de porções de tempo-frequência, um ou mais componente(s) do campo de som correspondente a uma ou mais função(ões) de base espacial avaliada(s) utilizando uma ou mais das direções de som e um sinal de referência para uma porção de tempo-frequência correspondente, o sinal de referência sendo derivado de um ou mais sinal(is) de microfone da pluralidade de sinais de microfone.
BR112018007276-1A 2016-03-15 2017-03-10 aparelho, método ou programa de computador para gerar uma descrição de campo de som BR112018007276A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16160504 2016-03-15
EP16160504.3 2016-03-15
PCT/EP2017/055719 WO2017157803A1 (en) 2016-03-15 2017-03-10 Apparatus, method or computer program for generating a sound field description

Publications (1)

Publication Number Publication Date
BR112018007276A2 true BR112018007276A2 (pt) 2018-10-30

Family

ID=55532229

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018007276-1A BR112018007276A2 (pt) 2016-03-15 2017-03-10 aparelho, método ou programa de computador para gerar uma descrição de campo de som

Country Status (13)

Country Link
US (3) US10524072B2 (pt)
EP (2) EP3579577A1 (pt)
JP (3) JP6674021B2 (pt)
KR (3) KR102261905B1 (pt)
CN (2) CN108886649B (pt)
BR (1) BR112018007276A2 (pt)
CA (1) CA2999393C (pt)
ES (1) ES2758522T3 (pt)
MX (1) MX2018005090A (pt)
PL (1) PL3338462T3 (pt)
PT (1) PT3338462T (pt)
RU (1) RU2687882C1 (pt)
WO (1) WO2017157803A1 (pt)

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CN111175693A (zh) * 2020-01-19 2020-05-19 河北科技大学 一种波达方向估计方法及波达方向估计装置
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Also Published As

Publication number Publication date
KR102063307B1 (ko) 2020-01-07
JP6674021B2 (ja) 2020-04-01
CN112218211A (zh) 2021-01-12
PL3338462T3 (pl) 2020-03-31
PT3338462T (pt) 2019-11-20
JP7434393B2 (ja) 2024-02-20
KR102261905B1 (ko) 2021-06-08
CA2999393A1 (en) 2017-09-21
JP7043533B2 (ja) 2022-03-29
US20190274000A1 (en) 2019-09-05
RU2687882C1 (ru) 2019-05-16
KR102357287B1 (ko) 2022-02-08
EP3338462B1 (en) 2019-08-28
ES2758522T3 (es) 2020-05-05
WO2017157803A1 (en) 2017-09-21
CN108886649A (zh) 2018-11-23
KR20190077120A (ko) 2019-07-02
US20190098425A1 (en) 2019-03-28
US11272305B2 (en) 2022-03-08
CN112218211B (zh) 2022-06-07
KR20200128169A (ko) 2020-11-11
CA2999393C (en) 2020-10-27
JP2022069607A (ja) 2022-05-11
MX2018005090A (es) 2018-08-15
EP3579577A1 (en) 2019-12-11
EP3338462A1 (en) 2018-06-27
KR20180081487A (ko) 2018-07-16
US20200275227A1 (en) 2020-08-27
CN108886649B (zh) 2020-11-10
US10694306B2 (en) 2020-06-23
JP2020098365A (ja) 2020-06-25
US10524072B2 (en) 2019-12-31
JP2018536895A (ja) 2018-12-13

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Legal Events

Date Code Title Description
B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]
B06G Technical and formal requirements: other requirements [chapter 6.7 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]