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https://shop.groupscience.gr/_w/wp-content/uploads/2022/06/IMG_5744-1.jpg522522MB-01 microphone boom allows to allocate a microphone with mechanical movement in order to measure sound pressure level. Boom is composed of an arm that makes the phone turning in space. Rotation frequency, angle and length arm are adjustable. Mechanical part of rotating boom is designed to allow measurement in particularly silent places. Microphone boom […]