Piezo Plates Dampin Feedback of Acoustic Guitar

[DigitalDon]

Go Here: http://www.nature.com/nsu/030602/030602-8.html

Of course it only has a "slight" effect on the guitar tone by killing some of the natural resonance. Try sticking one of these on someone's $5,000 Martin.

DD

 

[Track Rat]

Sounds scary. I ain't mounting nothing like that on my D-41.

 

[rpe]

ditto.

sounds scary

 

[Treeline]

Not scary at all

Just don't use superglue.

Sounds to me like the balanced cord theory at work.

Introduce an exact duplicate of an overload vibration to the guitar's top in real time, for a narrow (notched) band of frequency, only reverse its phase and you create a node generating silence where there had been overmodulation.

If you could narrow the offending frequency with a notch filter, it will be the only thing triggering the plate - which would vibrate at only that frequency and be transparent to everything else. So the trick would be to have the signal overload sensed by a really fast oscillator of some kind, phase reversed, and sent to the piezo plate. Narrow the notch, narrow the plate's response.

Kewl!!