WO2009008068A1 - 自動音場補正装置 - Google Patents

自動音場補正装置 Download PDF

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Publication number
WO2009008068A1
WO2009008068A1 PCT/JP2007/063793 JP2007063793W WO2009008068A1 WO 2009008068 A1 WO2009008068 A1 WO 2009008068A1 JP 2007063793 W JP2007063793 W JP 2007063793W WO 2009008068 A1 WO2009008068 A1 WO 2009008068A1
Authority
WO
WIPO (PCT)
Prior art keywords
phase characteristics
phase
sound field
correction device
field correction
Prior art date
Application number
PCT/JP2007/063793
Other languages
English (en)
French (fr)
Inventor
Shintaro Hosoi
Akira Hattori
Original Assignee
Pioneer Corporation
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 Pioneer Corporation filed Critical Pioneer Corporation
Priority to JP2009522459A priority Critical patent/JPWO2009008068A1/ja
Priority to PCT/JP2007/063793 priority patent/WO2009008068A1/ja
Publication of WO2009008068A1 publication Critical patent/WO2009008068A1/ja

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
    • 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

Abstract

自動音場補正装置は、各チャンネルのオーディオ信号の位相特性を補正し、スピーカへ出力する。位相特性の補正は、各スピーカの特性に起因する位相の乱れを補正するように行われる。位相特性の補正においては、まず複数チャンネルのオーディオ信号についてチャンネル毎に位相特性が測定され、測定位相特性が得られる。次に、予め用意された位相特性モデル又は位相特性データを利用して、測定位相特性に十分に近似する位相特性が推定位相特性として生成される。そして、推定位相特性に基づいて、オーディオ信号の位相特性が補正される。
PCT/JP2007/063793 2007-07-11 2007-07-11 自動音場補正装置 WO2009008068A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009522459A JPWO2009008068A1 (ja) 2007-07-11 2007-07-11 自動音場補正装置
PCT/JP2007/063793 WO2009008068A1 (ja) 2007-07-11 2007-07-11 自動音場補正装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/063793 WO2009008068A1 (ja) 2007-07-11 2007-07-11 自動音場補正装置

Publications (1)

Publication Number Publication Date
WO2009008068A1 true WO2009008068A1 (ja) 2009-01-15

Family

ID=40228265

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/063793 WO2009008068A1 (ja) 2007-07-11 2007-07-11 自動音場補正装置

Country Status (2)

Country Link
JP (1) JPWO2009008068A1 (ja)
WO (1) WO2009008068A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012257079A (ja) * 2011-06-09 2012-12-27 Clarion Co Ltd フィルタ係数決定装置
WO2015050006A1 (ja) * 2013-10-01 2015-04-09 クラリオン株式会社 音場測定装置、音場測定方法および音場測定プログラム
US10140997B2 (en) 2014-07-01 2018-11-27 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Decoder and method for decoding an audio signal, encoder and method for encoding an audio signal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005184040A (ja) * 2003-12-15 2005-07-07 Sony Corp 音声信号処理装置及び音声信号再生システム
JP2005253001A (ja) * 2004-03-08 2005-09-15 Yamaha Corp クロスオーバー周波数推定装置およびオーディオ装置
JP2006148888A (ja) * 2004-11-18 2006-06-08 Samsung Electronics Co Ltd マルチチャンネルスピーカモードの自動設定方法及び装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2571091B2 (ja) * 1988-03-18 1997-01-16 ティーオーエー株式会社 スピーカの周波数特性補正装置
JPH11103495A (ja) * 1997-09-29 1999-04-13 Yoshiki Kogyo Kk 音響再生装置の位相補償システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005184040A (ja) * 2003-12-15 2005-07-07 Sony Corp 音声信号処理装置及び音声信号再生システム
JP2005253001A (ja) * 2004-03-08 2005-09-15 Yamaha Corp クロスオーバー周波数推定装置およびオーディオ装置
JP2006148888A (ja) * 2004-11-18 2006-06-08 Samsung Electronics Co Ltd マルチチャンネルスピーカモードの自動設定方法及び装置

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012257079A (ja) * 2011-06-09 2012-12-27 Clarion Co Ltd フィルタ係数決定装置
WO2015050006A1 (ja) * 2013-10-01 2015-04-09 クラリオン株式会社 音場測定装置、音場測定方法および音場測定プログラム
JP2015070589A (ja) * 2013-10-01 2015-04-13 クラリオン株式会社 音場測定装置、音場測定方法および音場測定プログラム
US9883303B2 (en) 2013-10-01 2018-01-30 Clarion Co., Ltd. Sound field measuring device, method and program
US10140997B2 (en) 2014-07-01 2018-11-27 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Decoder and method for decoding an audio signal, encoder and method for encoding an audio signal
US10192561B2 (en) 2014-07-01 2019-01-29 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio processor and method for processing an audio signal using horizontal phase correction
US10283130B2 (en) 2014-07-01 2019-05-07 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio processor and method for processing an audio signal using vertical phase correction
US10529346B2 (en) 2014-07-01 2020-01-07 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Calculator and method for determining phase correction data for an audio signal
US10770083B2 (en) 2014-07-01 2020-09-08 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio processor and method for processing an audio signal using vertical phase correction
US10930292B2 (en) 2014-07-01 2021-02-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio processor and method for processing an audio signal using horizontal phase correction

Also Published As

Publication number Publication date
JPWO2009008068A1 (ja) 2010-09-02

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