[sdiy] frequency counter

[cheater cheater]

On Mon, Oct 26, 2009 at 05:52, Paul Perry <pfperry at melbpc.org.au> wrote:
> What one REALLY wants, is an
> OLED screen, with a lissajou pattern,
> and a digital readout superimposed..

Are you talking about a new Beta VCR?

>> Can a chain of AD->uC->DA inserted after the expo help with high
>> frequency performance, by introducing correction offsets?
>
> No. It will be too slow. If you want to use MCU to adjust for high freq
> tracking errors, it's better to incorporate that into the master pitch CV
> dac. Any tracking error is unlikely to matter in the modulation.
>
> Antti

I was thinking of 'slow' modulation, yes. However it doesn't matter if
the makeup is slow: I think it can still be used to correct the error
measured in only the DC part of the modulation, which is better than
not correcting it!

D.