[sdiy] Juno 6/60 SH rate for filter cv

[Andrew Simper]

On 18 July 2012 01:49, Kyle Stephens <lightburnx at yahoo.com> wrote:
> I've never noticed stepping in my Juno-6. Then again I've never tried running CV to the filter, let alone approaching audio rates where presumably you might get that issue. Your foot (via a pedal) couldn't possibly move as fast as to make it glitch.
>
>
> _Kyle

Hi Kyle,

The sample and hold CV controls the filter all the time. This is how
the cutoff moves from everything, the lfo, the envelope. The scan rate
of the controls effects the depth of the modulation, but that I don't
mind so much since I have to manually move that, it's the things that
are analog sources being sampled that I am interested in. An easy test
is to get the filter into self osc, then apply a fast envelope down in
pitch to the cutoff so the pitch ends at around 30 hz. If you hear any
zippering then the sample and hold rate is too slow. You'll need to
switch the amp to gate mode for this.

All the best,

Andy