[sdiy] A crazy idea..

[Harry Bissell Jr]

You could record the CV signals by using a 
V/F (voltage to frequency) converter... essentially
a VCO.  Record the frequencies.

To play back, you use a F/V converter. This could be
a simple tachometer type circuit, or a ramp/hold type.

If you used the ramp/hold, it could respond in
two cycles of the recovered frequency (well ONE cycle
if you use a more sophisticated circuit. In fact it
could even be by HALF-CYCLE if you are really really
fussy about response time.

If you used maybe 1KHz to 10KHz to represent the
0-10V range... the longest response time would be a 
1ms delay.  That's probably good enough for all
'non-audio' rate control voltages.

I think that Morton Subotnick used this method.

H^) harry

--- Jeff Farr <moogah at gmail.com> wrote:

> I've got a MAudio 1010lt audio interface in my
> computer at the moment and
> one of the neat features of the card is tha ability
> to stack as many of 3
> other cards into the system for a rather large
> number of inputs and outputs
> (more than 30). Now, perhaps I'm way off base here,
> but I believe it would
> be possible to patch together a modular so that both
> the audio and control
> signals are routed through the computer such that
> complete performances can
> be recorded. Obviously the audio will work, but I
> can only speculate about
> controll signals being properly recorded... Any
> thoughts?
>