Nippon Soken, Inc.

Yasuhiro Kimura

Satosi Kuwakado

Katsuyuki Tanaka

Masanori Kato

A sound source searching device for searching an objective sound source out of a plurality of sound sources, is disclosed. The device comprises an intensity probe provided with one pair of microphones, pulse motors for rotating the probe on the horizontal and vertical planes, a computer for calculating acoustic intensity corresponding to the frequency of the objective sound source from the sound pressure signal generated by the intensity probe, an interface device provided with pulse motor driving circuits for driving the pulse motors in accordance with the instructions of the computer by predetermined angles and an indicator for indicating the direction in which the acoustic intensity is the minimum on the horizontal and the vertical planes, as the direction of the objective sound source.

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Anjo, Japan

Yasuhiro Kimura