WO2009004983A1 - 拡声装置 - Google Patents
拡声装置 Download PDFInfo
- 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
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
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Circuit For Audible Band Transducer (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Stereophonic System (AREA)
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。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-171512 | 2007-06-29 | ||
JP2007171512A JP2009010808A (ja) | 2007-06-29 | 2007-06-29 | 拡声装置 |
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)
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)
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 |
-
2007
- 2007-06-29 JP JP2007171512A patent/JP2009010808A/ja active Pending
-
2008
- 2008-06-26 WO PCT/JP2008/061660 patent/WO2009004983A1/ja active Application Filing
Patent Citations (11)
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 |
Also Published As
Publication number | Publication date |
---|---|
JP2009010808A (ja) | 2009-01-15 |
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