biofeedback

[CHoaglin at aol.com]

along the lines of playing by touching the electronics (but not quite), an 
idea popped into my head. I've got a couple of old HP laser interferometers 
tucked away in the basement that I picked up at a scrap yard, along with 
their control and pulse counting electronics. So I start thinking, why not 
use the output from the interferometer's sensor to control a synth. I'm not 
sure how the circuit outputs the pulse count, but I'm thinking there must be 
a way to look at the rate of pulses over small intervals (how quickly the 
interference fringes are going by) as well as the number of pulses, and use 
that to generate some kind of control voltage. by shining the laser on a 
surface and pushing against the surface, control could be acheived.

Yet another project for the list of things to do..

Chris