1 when it’s too fast to see, and too important not to. ® CASE STUDY For the most current version visit www.visionresearch.com Subject to change Rev July 2013 “We need to make the sound wave visible. Sound is basically an oscillatory motion of particles in the air. The sound frequency that can be heard by humans is up to about 20 kHz. If we can observe this quick oscillation of the particles by a digital high speed camera we are able to vi

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