KR101938925B1 - 음장의 앰비소닉스 표현을 생성하기 위해 사용되는 강체구상에서의 구면 마이크로폰 배열의 신호들을 처리하기 위한 방법 및 장치 - Google Patents

음장의 앰비소닉스 표현을 생성하기 위해 사용되는 강체구상에서의 구면 마이크로폰 배열의 신호들을 처리하기 위한 방법 및 장치 Download PDF

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KR101938925B1
KR101938925B1 KR1020147015362A KR20147015362A KR101938925B1 KR 101938925 B1 KR101938925 B1 KR 101938925B1 KR 1020147015362 A KR1020147015362 A KR 1020147015362A KR 20147015362 A KR20147015362 A KR 20147015362A KR 101938925 B1 KR101938925 B1 KR 101938925B1
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rti
microphone
transfer function
filter
noise
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KR20140091578A (ko
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스벤 코르돈
요한-마르쿠스 바트케
알렉산더 크뤼거
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돌비 인터네셔널 에이비
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    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/326—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/401—2D or 3D arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H04R29/005—Microphone arrays
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Stereophonic System (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
KR1020147015362A 2011-11-11 2012-10-31 음장의 앰비소닉스 표현을 생성하기 위해 사용되는 강체구상에서의 구면 마이크로폰 배열의 신호들을 처리하기 위한 방법 및 장치 Active KR101938925B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11306471.1 2011-11-11
EP11306471.1A EP2592845A1 (en) 2011-11-11 2011-11-11 Method and Apparatus for processing signals of a spherical microphone array on a rigid sphere used for generating an Ambisonics representation of the sound field
PCT/EP2012/071535 WO2013068283A1 (en) 2011-11-11 2012-10-31 Method and apparatus for processing signals of a spherical microphone array on a rigid sphere used for generating an ambisonics representation of the sound field

Publications (2)

Publication Number Publication Date
KR20140091578A KR20140091578A (ko) 2014-07-21
KR101938925B1 true KR101938925B1 (ko) 2019-04-10

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Country Link
US (1) US9503818B2 (https=)
EP (2) EP2592845A1 (https=)
JP (1) JP6030660B2 (https=)
KR (1) KR101938925B1 (https=)
CN (1) CN103931211B (https=)
WO (1) WO2013068283A1 (https=)

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US9495968B2 (en) 2013-05-29 2016-11-15 Qualcomm Incorporated Identifying sources from which higher order ambisonic audio data is generated
US9466305B2 (en) 2013-05-29 2016-10-11 Qualcomm Incorporated Performing positional analysis to code spherical harmonic coefficients
US20150127354A1 (en) * 2013-10-03 2015-05-07 Qualcomm Incorporated Near field compensation for decomposed representations of a sound field
EP2866475A1 (en) 2013-10-23 2015-04-29 Thomson Licensing Method for and apparatus for decoding an audio soundfield representation for audio playback using 2D setups
DE102013223201B3 (de) 2013-11-14 2015-05-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zum Komprimieren und Dekomprimieren von Schallfelddaten eines Gebietes
US9502045B2 (en) 2014-01-30 2016-11-22 Qualcomm Incorporated Coding independent frames of ambient higher-order ambisonic coefficients
US9922656B2 (en) 2014-01-30 2018-03-20 Qualcomm Incorporated Transitioning of ambient higher-order ambisonic coefficients
EP4539046A1 (en) 2014-03-21 2025-04-16 Dolby International AB Method for compressing a higher order ambisonics (hoa) signal, method for decompressing a compressed hoa signal, apparatus for compressing a hoa signal, and apparatus for decompressing a compressed hoa signal
EP2922057A1 (en) 2014-03-21 2015-09-23 Thomson Licensing Method for compressing a Higher Order Ambisonics (HOA) signal, method for decompressing a compressed HOA signal, apparatus for compressing a HOA signal, and apparatus for decompressing a compressed HOA signal
KR20240162584A (ko) 2014-03-21 2024-11-15 돌비 인터네셔널 에이비 고차 앰비소닉스(hoa) 신호를 압축하는 방법, 압축된 hoa 신호를 압축 해제하는 방법, hoa 신호를 압축하기 위한 장치, 및 압축된 hoa 신호를 압축 해제하기 위한 장치
US9852737B2 (en) * 2014-05-16 2017-12-26 Qualcomm Incorporated Coding vectors decomposed from higher-order ambisonics audio signals
US10770087B2 (en) 2014-05-16 2020-09-08 Qualcomm Incorporated Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals
US9620137B2 (en) 2014-05-16 2017-04-11 Qualcomm Incorporated Determining between scalar and vector quantization in higher order ambisonic coefficients
US20150332682A1 (en) * 2014-05-16 2015-11-19 Qualcomm Incorporated Spatial relation coding for higher order ambisonic coefficients
JP6620140B2 (ja) * 2014-07-23 2019-12-11 ジ・オーストラリアン・ナショナル・ユニバーシティー ２次元センサーアレイを用いて３次元波動場の３次元波動場表現を構築するための方法、コンピューター可読記憶媒体及び装置
TWI584657B (zh) * 2014-08-20 2017-05-21 國立清華大學 一種立體聲場錄音以及重建的方法
KR101586364B1 (ko) * 2014-09-05 2016-01-18 한양대학교 산학협력단 공간 음향 분할을 통한 동적 방향성 임펄스 응답을 생성하기 위한 방법, 장치 및 컴퓨터 판독 가능한 기록 매체
US9747910B2 (en) 2014-09-26 2017-08-29 Qualcomm Incorporated Switching between predictive and non-predictive quantization techniques in a higher order ambisonics (HOA) framework
US9560441B1 (en) * 2014-12-24 2017-01-31 Amazon Technologies, Inc. Determining speaker direction using a spherical microphone array
EP3073488A1 (en) 2015-03-24 2016-09-28 Thomson Licensing Method and apparatus for embedding and regaining watermarks in an ambisonics representation of a sound field
RU2687882C1 (ru) * 2016-03-15 2019-05-16 Фраунхофер-Гезеллшафт Цур Фёрдерунг Дер Ангевандтен Форшунг Е.В. Устройство, способ формирования характеристики звукового поля и машиночитаемый носитель информации
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CN109963249B (zh) * 2017-12-25 2021-12-14 北京京东尚科信息技术有限公司 数据处理方法及其系统、计算机系统和计算机可读介质
CN112292870A (zh) 2018-08-14 2021-01-29 阿里巴巴集团控股有限公司 音频信号处理装置及方法
JP6969793B2 (ja) 2018-10-04 2021-11-24 株式会社ズーム アンビソニックスのためのａ／ｂフォーマット変換装置、ａ／ｂフォーマット変換ソフトウェア、レコーダー、再生ソフトウェア
CN110133579B (zh) * 2019-04-11 2021-02-05 南京航空航天大学 适用于球面麦克风阵列声源定向的球谐波阶数自适应选择方法
KR102154553B1 (ko) * 2019-09-18 2020-09-10 한국표준과학연구원 지향성이 향상된 마이크로폰 어레이 및 이를 이용한 음장 취득 방법
CN112530445A (zh) * 2020-11-23 2021-03-19 雷欧尼斯（北京）信息技术有限公司 高阶Ambisonic音频的编解码方法及芯片
CN113395638B (zh) * 2021-05-25 2022-07-26 西北工业大学 一种基于等效源法的室内声场扬声器重放方法
CN113281900B (zh) * 2021-05-26 2022-03-18 复旦大学 一种基于汉克尔变换与波束传播法的光学建模与计算方法
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WO2013068283A1 (en) 2013-05-16
JP2014535231A (ja) 2014-12-25
EP2777297A1 (en) 2014-09-17
US9503818B2 (en) 2016-11-22
JP6030660B2 (ja) 2016-11-24
CN103931211B (zh) 2017-02-15
KR20140091578A (ko) 2014-07-21
EP2777297B1 (en) 2016-06-08
US20140286493A1 (en) 2014-09-25
EP2592845A1 (en) 2013-05-15
CN103931211A (zh) 2014-07-16

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