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It’s not the 800 envelope generator,it’s the VCA. We’ve been through this many times. (now ∗I∗ am gritting my teeth)
I have a ton of other vca’s that donot exhibit the same behaviour (Doepfer, moog, etc). of course they will ‘click’at superfast attacks & low freq waveforms, but nothing like the MOTM vca.
If you remember Paul, the problem wasnever solved. $10,000 scope or not.
“The ∗same file∗ makes ∗noclicks∗ on my Event 20/20s.” buloney. Play the file I sent you a yearago.
paul
From: Paul Schreiber [mailto:synth1@...]
Sent: Thursday, April 07, 20055:19 PM
To: motm@yahoogroups.com; JimCarlile
Subject: Re: [motm] Re: ClickingVCA
(grits teeth):
a) there is NOTHING WRONG with the '190 VCA.
b) I've sold over 180 '190s, perhaps 4 people havesaid something.
c) I've looked at the outputs with my $10,000digital scope looking for obvious
'spikes' or DC shifts. Nope. I've run FFTs. I'veduplicated "clicking" by
hand-editing waveforms in SoundForge and playingthem back on crappy PC
speakers. The ∗same file∗ makes ∗no clicks∗ on myEvent 20/20s.
d) What you may want to try is increasing C9 onthe '800 to like 10uf non-polar.
This will increase the overall ADR times, and youmay find that on the lower end
of the scale (from 0 to 2) it's easier to find anAttack time that is more
'forgiving'.
e) you may find that Sines and Triangle will'click less' than pulses or saws.
Paul S.