EP1933596A4 - Multi-channel audio signal correction device - Google Patents

Multi-channel audio signal correction device

Info

Publication number
EP1933596A4
EP1933596A4 EP06782960A EP06782960A EP1933596A4 EP 1933596 A4 EP1933596 A4 EP 1933596A4 EP 06782960 A EP06782960 A EP 06782960A EP 06782960 A EP06782960 A EP 06782960A EP 1933596 A4 EP1933596 A4 EP 1933596A4
Authority
EP
European Patent Office
Prior art keywords
correction device
channel audio
speaker module
audio signal
delay time
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP06782960A
Other languages
German (de)
French (fr)
Japanese (ja)
Other versions
EP1933596A1 (en
Inventor
Ryota Honma
Koji Kudo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1933596A1 publication Critical patent/EP1933596A1/en
Publication of EP1933596A4 publication Critical patent/EP1933596A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04S7/301—Automatic calibration of stereophonic sound system, e.g. with test microphone
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

[PROBLEMS] To provide a multi-channel audio signal correction device capable of reducing the number of installation steps of a speaker or/and an amplifier connected to a multi-channel audio reproduction device. [MEANS FOR SOLVING PROBLEMS] A multi-channel audio signal correction device (3) transmits a predetermined measurement signal to a speaker module (2) connected via a network (4) and collects measurement acoustic outputted by that. The correction device (3) measures the propagation delay time of each of the collected measurement acoustics and estimates the arrangement position of the speaker (21) of the object speaker module (2) according to the estimated propagation delay time. Furthermore, according to the estimated arrangement position, the correction device (3) allocates an output channel to the object speaker module (2), generates a correction value for correcting the output of the object speaker module (2) according to the measured propagation delay time and the allocated output channel, and gives it to the object speaker module (2).
EP06782960A 2005-09-01 2006-08-24 Multi-channel audio signal correction device Withdrawn EP1933596A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005253679A JP2007068021A (en) 2005-09-01 2005-09-01 Multi-channel audio signal correction apparatus
PCT/JP2006/316556 WO2007029507A1 (en) 2005-09-01 2006-08-24 Multi-channel audio signal correction device

Publications (2)

Publication Number Publication Date
EP1933596A1 EP1933596A1 (en) 2008-06-18
EP1933596A4 true EP1933596A4 (en) 2008-09-10

Family

ID=37835631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06782960A Withdrawn EP1933596A4 (en) 2005-09-01 2006-08-24 Multi-channel audio signal correction device

Country Status (4)

Country Link
EP (1) EP1933596A4 (en)
JP (1) JP2007068021A (en)
CN (1) CN101263743A (en)
WO (1) WO2007029507A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2915041A1 (en) * 2007-04-13 2008-10-17 Canon Kk METHOD OF ALLOCATING A PLURALITY OF AUDIO CHANNELS TO A PLURALITY OF SPEAKERS, COMPUTER PROGRAM PRODUCT, STORAGE MEDIUM AND CORRESPONDING MANAGEMENT NODE.
JP4983485B2 (en) * 2007-08-31 2012-07-25 ソニー株式会社 Audio signal receiving apparatus, audio signal transmitting apparatus, audio signal transmission system, audio signal transmission method and program
EP2899994B1 (en) * 2008-04-21 2019-02-20 Caavo, Inc. An electrical system for a speaker and its control
EP2375779A3 (en) * 2010-03-31 2012-01-18 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for measuring a plurality of loudspeakers and microphone array
CN107493542B (en) 2012-08-31 2019-06-28 杜比实验室特许公司 For playing the speaker system of audio content in acoustic surrounding
CN102932730B (en) * 2012-11-08 2014-09-17 武汉大学 Method and system for enhancing sound field effect of loudspeaker group in regular tetrahedron structure
CN105407443B (en) * 2015-10-29 2018-02-13 小米科技有限责任公司 The way of recording and device
US9924291B2 (en) * 2016-02-16 2018-03-20 Sony Corporation Distributed wireless speaker system
CN106488363B (en) * 2016-09-29 2020-09-22 Tcl通力电子（惠州）有限公司 Sound channel distribution method and device of audio output system
CN108391221A (en) * 2018-05-04 2018-08-10 郑治龙 A kind of sound field restoring decoder system
JP2021196582A (en) * 2020-06-18 2021-12-27 ヤマハ株式会社 Acoustic characteristic correction method and acoustic characteristic correction device
WO2023130206A1 (en) * 2022-01-04 2023-07-13 Harman International Industries, Incorporated Multi-channel speaker system and method thereof
CN115923699B (en) * 2022-12-30 2023-08-11 镁佳(北京)科技有限公司 Vehicle sound effect adjusting method and device, storage medium and electronic equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08179786A (en) * 1994-12-20 1996-07-12 Onkyo Corp On-vehicle stereophonic reproducing device
JPH10248098A (en) * 1997-03-04 1998-09-14 Sony Corp Acoustic processor
JP2000354300A (en) * 1999-06-11 2000-12-19 Accuphase Laboratory Inc Multi-channel audio reproducing device
JP2001025085A (en) * 1999-07-08 2001-01-26 Toshiba Corp Channel arranging device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3788889B2 (en) * 1999-09-06 2006-06-21 株式会社東芝 Sound reproduction device and speaker device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08179786A (en) * 1994-12-20 1996-07-12 Onkyo Corp On-vehicle stereophonic reproducing device
JPH10248098A (en) * 1997-03-04 1998-09-14 Sony Corp Acoustic processor
JP2000354300A (en) * 1999-06-11 2000-12-19 Accuphase Laboratory Inc Multi-channel audio reproducing device
JP2001025085A (en) * 1999-07-08 2001-01-26 Toshiba Corp Channel arranging device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007029507A1 *

Also Published As

Publication number Publication date
EP1933596A1 (en) 2008-06-18
WO2007029507A1 (en) 2007-03-15
JP2007068021A (en) 2007-03-15
CN101263743A (en) 2008-09-10

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