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Title:
SOUND MEASURING RECEIVER
Document Type and Number:
Japanese Patent JP2009194535
Kind Code:
A
Abstract:

To provide a sound measuring receiver for suppressing a vibration noise output.

The sound measuring receiver 10 is configured so as to have two channels 24 and 26, wherein the piezoelectric sensitivity of upper piezoelectric vibrators 12 and 16 is larger than the piezoelectric sensitivity of lower piezoelectric vibrators 14 and 18, and since vibration noise outputs of the upper piezoelectric vibrators 12 and 16 are always output in a higher output than vibration noise outputs of the lower piezoelectric vibrators 14 and 18, and a vibration noise output 102 from a left channel 24 and a vibration noise output 104 from a right channel 26 are always output with the same phase and input to a cardioid processing part, the final vibration noise output can be reduced.


Inventors:
KAWAMORI AKIYOSHI
SAKURADA TAKASHI
Application Number:
JP2008000031927
Publication Date:
August 27, 2009
Filing Date:
February 13, 2008
Export Citation:
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Assignee:
OKI ELECTRIC IND CO LTD
International Classes:
H04R17/02
Domestic Patent References:
JPS5859700A1983-04-08
JPH10210589A1998-08-07
JPS63114588U1988-07-23
JPH06233376A1994-08-19
JP2007121024A2007-05-17
JPH06233372A1994-08-19
Attorney, Agent or Firm:
香取 孝雄