Category Archives: music visualization

Musical String Shooter Makes Sound Visible

One reason we really like [Rulof]’s hacks is that he combines the most unlikely things to create something unexpected. This time he makes a fast-moving loop of cotton string undulate in time to music.

To do this he uses cotton string, hard drive parts, two wheels from a toy Ferrari, two DC motors, a plastic straw,  a speaker, and an amplifier.  The loop of string sits in the air by being rapidly rotated in between the two wheels. The hard drive parts, driven by the amplifier, give the string a tap with an amplitude, and at a time determined by …read more

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