Doepfer

> > > So, what shall I do to get rid of this click???
> > The solution _is_ the release/attack. To avoid that the 
VCO "falls 
> down"
> > after releasing the ribbon, you might try to feed the CV-Out of 
the 
> ribbon
> > through a Sample and Hold, that is triggered by a pulse which is 
> created
> > from the the inverted Gate.
> > 
> > 
> > A198 CV-------------------> A-148 -------> VCO
> >                              ^
> > A198 Gate -> A-165 -> A-162 -/
> > 
> > The A-165 inverts
> > The A-162 has to be set to minimal values and creates the trigger
> 
> I was going to suggest pretty much the same thing, but I have 
doubts 
> as to how effective this would be. The basic problem is that you 

... and I can now report that this method definitely doesn't work! 
The 'gate_pos' signal is basically based on whether the 'CV_pos' 
signal is greater than zero or not - thus the gate stays open for 
quite a while after pressure is released from the ribbon, whilst the 
voltage falls back to zero. Any attempt to invert the gate and sample 
the CV is futile because the CV is by now back to zero anyhow! 
Viewing the CV and gate signals on a scope and this is quite clear, 
even though it happens in just handfuls of milliseconds.

And I found trying to use the 'gate_pres' was too clumsy - I need to 
press pretty hard to get that to gate at all.

The ribbon controller's great, for like, 'air-guitar' - I'm sure my 
yound nephew is going to love it when he visits in a few weeks!

Tim