A Photographical Sound Visualization Method Using Light Emitting Diodes

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概要

• 論文の詳細を見る

• This paper describes a sound visualization method using three color-light-emitting diodes; the distribution of sound pressure levels around each sound source obtained actually by this method; and the comparison of this method with one using a plotter for recording the measured results. In this sound visualization method, the distribution of sound pressure levels is measured with a sound visualization device built as a trial. This device consists of an auto-scanning device of a microphone with three color-light-emitting diodes; an indicator of sound pressure level which switches on or off those diodes at each instance when the sound pressure level changes by 5 dB; and a photographing set for recording the color-lights emitted from those diodes on a film. The results show that properties of sound field, such as the distribution of sound pressure levels of sound diffraction can be precisely obtained by this method.

• 一般社団法人日本機械学会の論文

著者

• Maruyama Akira

  Muroran Institute Of Technology

• NISHIDA Kohshi

  Muroran Institute of Technology

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