Title:
音響制御装置
Document Type and Number:
Japanese Patent JP5701833
Kind Code:
B2
Abstract:
A first loudspeaker group driven by a first sound reproduction signal, radiates a plurality of first sounds, and generates a first sound image synthesized from the plurality of first sounds. A second loudspeaker group driven by a second sound reproduction signal, radiates a plurality of second sounds, and generates a second sound image synthesized from the plurality of second sounds. The first and second sound reproduction signals are generated so that a first sound pressure ratio of a first control point to a second control point is equal to a second sound pressure ratio of the first control point to the second control point. The first sound pressure ratio is formed by a third sound radiated from a virtual sound source driven by a target sound reproduction signal. The second sound pressure ratio is formed by a third sound image synthesized from the first and second sound images.
Inventors:
Akihiko Ebado
Osamu Nishimura
Takahiro Hiruma
Osamu Nishimura
Takahiro Hiruma
Application Number:
JP2012213082A
Publication Date:
April 15, 2015
Filing Date:
September 26, 2012
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04S1/00; H04R3/12; H04S5/02
Domestic Patent References:
| JP2006352732A | ||||
| JP2012039264A | ||||
| JP2008154083A | ||||
| JP2012004816A | ||||
| JP2003153398A | ||||
| JP2007134955A | ||||
| JP2002199484A |
Foreign References:
| WO2007046288A1 | ||||
| US20080025534 |
Attorney, Agent or Firm:
Masayuki Sunai
Fujiwara Yasutaka
Hajime Yamashita
Tezuka History Exhibition
Mikio Kobayashi
Masanari Yamashita
Goji Izumi
Yurika Ogawa
Fujiwara Yasutaka
Hajime Yamashita
Tezuka History Exhibition
Mikio Kobayashi
Masanari Yamashita
Goji Izumi
Yurika Ogawa