Title:
SOUND ACQUISITION DEVICE, AND SOUND ACQUISITION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/033260
Kind Code:
A1
Abstract:
This sound acquisition device is characterized by being provided with a plurality of microphones, a plurality of first gain control units that control the respective gains of the microphones, an addition unit that performs, by using a prescribed gain, addition on sound signals outputted by the respective first gain control units, a second gain control unit that controls the gain of the sound signal outputted by the addition unit, and a gain setting unit that sets the respective gains of the plurality of first gain control units on the basis of the gain setting at the second gain control unit.
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Inventors:
INOUE TAKAYUKI (JP)
Application Number:
PCT/JP2015/073713
Publication Date:
March 02, 2017
Filing Date:
August 24, 2015
Export Citation:
Assignee:
YAMAHA CORP (JP)
International Classes:
H04R3/00; H04M1/60
Foreign References:
| JP2005057450A | 2005-03-03 | |||
| JP2004129038A | 2004-04-22 | |||
| JP2014116930A | 2014-06-26 | |||
| JP2011119783A | 2011-06-16 | |||
| JPH09140000A | 1997-05-27 |
Other References:
See also references of EP 3343947A4
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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