Patent
Sound image visualizing device for sound source observation
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TLDR
In this paper, a sound source observation using sound image visualizing device is presented, where the sound source is surely observed with simple configuration, the sound image is visualized and which is used for maintenance of an observation object.Abstract:
PURPOSE:To provide the sound source observation use sound image visualizing device by which a sound source is surely observed with simple configuration, the sound image is visualized and which is used for maintenance of an observation object. CONSTITUTION:The system is provided with an observation object having a sound source, a parabolic reflector 1 opposed to the observation object, a microphone array 2 arranged to a focal plane of the parabolic reflector 1, and a display device converting a spatial distribution of sound pressure in front of the parabolic reflector 1 into a 2-dimension picture continuously based on an output signal of the microphone array 2.read more
Citations
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TL;DR: In this article, a sound collecting device consisting of a reflecting plate 14 having an inner curved surface as an ellipsoid of revolution and a plurality of microphones arranged on a straight line running through a focal point of the reflecting plate to collect sonic waves from specific sound source collecting positions in a sound source survey region is presented.
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References
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Patent
Sound source search instrument
TL;DR: In this article, a sound image and an object image are overlapped and displayed by placing a microphone array and a TV camera on the mirror axis of a sound collector with the focal planes of both the array and the device close to each other.