Physics of Music  2005

 Jon Testing Banjo Jon Nofziger is measuring the response of a wood top banjo he built.  He is driving it at the bridge with a sine waves of variable frequency and measuring the radiated sound picked up by a microphone.  The frequency response is significantly altered by the presence of objects near the back of the instrument.
 
 Sean probing violin  Sean Kaufman is attaching piezo-electric pickups to a violin.


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