Title:
遅延時間算出装置およびプログラム
Document Type and Number:
Japanese Patent JP5212023
Kind Code:
B2
Abstract:
A delay time calculation apparatus enabling all the speaker units of a delay array type speaker array to contribute to formation of a combined wavefront. Sound receiving points for acoustic waves output from the speaker units are set within a target area for the acoustic waves. For each speaker unit, an average value of differences between distances between the sound receiving points for the speaker units and other speaker units and distances between the sound receiving points for the speaker units and the speaker units is determined, and an average value of differences between distances from the other speaker units to sound receiving points for the other speaker units and distances from the speaker units to the sound receiving points for the other speaker units is determined. An average of the average values is converted into a delay time, thereby determining the delay time for each speaker unit.
Inventors:
Takashi Yamakawa
Takashi Kushida
Takashi Kushida
Application Number:
JP2008283003A
Publication Date:
June 19, 2013
Filing Date:
November 04, 2008
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
H04R3/12; H04R1/40
Domestic Patent References:
| JP2006222669A | ||||
| JP2006067310A |
Attorney, Agent or Firm:
Takashi Matsumoto