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Title:
SPATIAL SOUND GENERATION DEVICE, SPATIAL SOUND GENERATION SYSTEM, SPATIAL SOUND GENERATION METHOD, AND SPATIAL SOUND GENERATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2018/070487
Kind Code:
A1
Abstract:
Provided is a spatial sound generation device (100) provided with a memory unit (106) and a control unit (102), and connected to a plurality of loudspeakers (116). In the spatial sound generation device, the control unit applies an inverse system while varying transmission properties with time according to the movement of a sound generating body on the basis of information showing the moving sound generating body, and calculates a plurality of input signals for each of the loudspeakers from a sound source signal representing the sounds generated by the sound generating body. In boundary sound field control, the inverse system outputs the input signals according to the transmission properties within a space in which the plurality of loudspeakers are arranged, so that three-dimensional acoustic wave fronts are formed in the loudspeakers on the basis of the input signals.

Inventors:
ISE SHIRO (JP)
KITAGAWA YUICHI (JP)
Application Number:
PCT/JP2017/037043
Publication Date:
April 19, 2018
Filing Date:
October 12, 2017
Export Citation:
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Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
International Classes:
H04S7/00; H04R1/40; H04R3/00
Domestic Patent References:
WO2015076149A12015-05-28
WO2014069112A12014-05-08
WO2014010290A12014-01-16
Foreign References:
JP2014090910A2014-05-19
JP2006246310A2006-09-14
JP2014094160A2014-05-22
US20150110310A12015-04-23
Other References:
ISE, SHIRO: "The Boundary Surface Control Principle and Its Applications, IEICE TRANSACTIONS on Fundamentals of Electronics", COMMUNICATIONS AND COMPUTER SCIENCES, vol. E88-A, no. 7, 1 July 2005 (2005-07-01), pages 1656 - 1664, XP001231939
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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