WO2009004983A1 - 拡声装置 - Google Patents

拡声装置 Download PDF

Info

Publication number
WO2009004983A1
WO2009004983A1 PCT/JP2008/061660 JP2008061660W WO2009004983A1 WO 2009004983 A1 WO2009004983 A1 WO 2009004983A1 JP 2008061660 W JP2008061660 W JP 2008061660W WO 2009004983 A1 WO2009004983 A1 WO 2009004983A1
Authority
WO
WIPO (PCT)
Prior art keywords
loudspeaker
speaker
units
voice
agree
Prior art date
Application number
PCT/JP2008/061660
Other languages
English (en)
French (fr)
Inventor
Toshiyuki Hata
Original Assignee
Yamaha 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 Yamaha Corporation filed Critical Yamaha Corporation
Publication of WO2009004983A1 publication Critical patent/WO2009004983A1/ja

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
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic

Abstract

　発話者の位置と拡声音声が聴こえてくる方向とを一致させるように放音指向性を制御する拡声装置を提供する。この拡声装置においては、４台の拡声ユニットを１列に接続する。発話者が発言した音声を、左端の第１の拡声ユニットが収音する。第１の拡声ユニットは、この音声信号を他の第２～４の拡声ユニットに転送する。また、コントロールユニットは、第２～４の拡声ユニットに対して、放音ビームの仮想焦点を発話者に一致させるための遅延パターンを送信する。第２～４の拡声ユニットは、第１の拡声ユニットから転送されて来た発話音声信号をコントロールユニットから送信されてきた遅延パターンでビーム制御して放音する。
PCT/JP2008/061660 2007-06-29 2008-06-26 拡声装置 WO2009004983A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007171512A JP2009010808A (ja) 2007-06-29 2007-06-29 拡声装置
JP2007-171512 2007-06-29

Publications (1)

Publication Number Publication Date
WO2009004983A1 true WO2009004983A1 (ja) 2009-01-08

Family

ID=40226029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061660 WO2009004983A1 (ja) 2007-06-29 2008-06-26 拡声装置

Country Status (2)

Country Link
JP (1) JP2009010808A (ja)
WO (1) WO2009004983A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016124084B4 (de) * 2016-12-12 2023-06-29 D&B Audiotechnik Gmbh & Co. Kg Lautsprechersystem mit Richtwirkung

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02288455A (ja) * 1989-04-27 1990-11-28 Fujitsu Ltd 会議用通話装置
JPH0974446A (ja) * 1995-03-01 1997-03-18 Nippon Telegr & Teleph Corp <Ntt> 音声通信制御装置
JP2000165831A (ja) * 1998-11-30 2000-06-16 Nec Corp 多地点テレビ会議システム
JP2005184386A (ja) * 2003-12-18 2005-07-07 Sony Corp 音声集音・映像撮像装置
JP2006020314A (ja) * 2004-06-30 2006-01-19 Polycom Inc 電話会議用のステレオ・マイクロフォン処理
JP2006180251A (ja) * 2004-12-22 2006-07-06 Yamaha Corp 複数話者による同時発声を可能とする音声信号処理装置およびプログラム
JP2006211156A (ja) * 2005-01-26 2006-08-10 Yamaha Corp 音響装置
JP2006279588A (ja) * 2005-03-29 2006-10-12 Yamaha Corp 多地点通信会議用端末
JP2007078545A (ja) * 2005-09-15 2007-03-29 Yamaha Corp 対象物検出装置及び音声会議装置
JP2007129486A (ja) * 2005-11-02 2007-05-24 Yamaha Corp 音声信号送受信装置
JP2007142595A (ja) * 2005-11-15 2007-06-07 Yamaha Corp 遠隔会議装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02288455A (ja) * 1989-04-27 1990-11-28 Fujitsu Ltd 会議用通話装置
JPH0974446A (ja) * 1995-03-01 1997-03-18 Nippon Telegr & Teleph Corp <Ntt> 音声通信制御装置
JP2000165831A (ja) * 1998-11-30 2000-06-16 Nec Corp 多地点テレビ会議システム
JP2005184386A (ja) * 2003-12-18 2005-07-07 Sony Corp 音声集音・映像撮像装置
JP2006020314A (ja) * 2004-06-30 2006-01-19 Polycom Inc 電話会議用のステレオ・マイクロフォン処理
JP2006180251A (ja) * 2004-12-22 2006-07-06 Yamaha Corp 複数話者による同時発声を可能とする音声信号処理装置およびプログラム
JP2006211156A (ja) * 2005-01-26 2006-08-10 Yamaha Corp 音響装置
JP2006279588A (ja) * 2005-03-29 2006-10-12 Yamaha Corp 多地点通信会議用端末
JP2007078545A (ja) * 2005-09-15 2007-03-29 Yamaha Corp 対象物検出装置及び音声会議装置
JP2007129486A (ja) * 2005-11-02 2007-05-24 Yamaha Corp 音声信号送受信装置
JP2007142595A (ja) * 2005-11-15 2007-06-07 Yamaha Corp 遠隔会議装置

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Publication number Publication date
JP2009010808A (ja) 2009-01-15

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