[LAU] Theramin oscillator for LADSPA?

[Lieven Moors]

On Sun, Oct 06, 2013 at 08:59:21PM +0000, Fons Adriaensen wrote:
> On Sun, Oct 06, 2013 at 01:29:23PM -0700, Ken Restivo wrote:
> > > Apart from that the sound will be frequency and amplitude
> > > modulated by minute movements of the player's hands.
> > 
> > True, that has a lot to do with the sound. I was thinking
> > a ribbon controller or a simple X-Y trackpad (or an OSC
> > thing on an Android tablet) would take care of that.
> 
> It would have to have sufficient bandwidth and resolution,
> both very high on the original.
> 
> Ciao,
> 

I once emulated the frequency modulation with an arduino and a cheap IR sensor. 
I don't remember the resolution of the arduino/IR sensor, but I got pretty good results.
I translated the distance values into frequency values, and I remember I had to 
stabelize the input, by taking avarages over the values. If you used two sensors 
like this, I think you could make a nice theremin controller...

Greetings,

lieven