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Uploaded by movingsoundtech on Sep 22, 2010
A device emits high pitched sounds to discourage loitering.
Science & Technology
Standard YouTube License
When I play these high frequencies using frequency generators, I can typical get to 20kHz, but online videos often don't seem to work with high frequencies. Is it lost in compresssion?
HordrissTheConfuser 4 months ago
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When I play these high frequencies using frequency generators, I can typical get to 20kHz, but online videos often don't seem to work with high frequencies. Is it lost in compresssion?
HordrissTheConfuser 4 months ago