[sdiy] ASM-1 VCa clicking.. improvements?

[Harry Bissell]

This is a DC coupled VCA, do you have any DC offsets in your input signals ?

You might try AC coupling the inputs...

This uses an unconventional method to control by varying the negative supply voltage to the chip. I don't
know firsthand how good it is...

I think Juergen Bergfors did a "VCA Shootout" that you should look up as a reference to how most common
VCA circuits perform compared with each other.

H^) harry


----- Original Message -----
From: Steve Maietta <srmaietta at yahoo.com>
To: synthdiy <synth-diy at dropmix.xs4all.nl>
Sent: Thu, 08 Mar 2012 11:29:42 -0500 (EST)
Subject: [sdiy] ASM-1 VCa clicking..   improvements?

Hey guys. I have a number of these VCA's in my system and they click horribly upon opening/closing..  I'd like to improve these....

schematics are here:
http://rubidium.dyndns.org/~magnus/synths/friends/stopp/#7


Is there anything I can do to this circuit to make it behave?

thanks
~Steve
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-- 
Harry Bissell & Nora Abdullah 4eva