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Subject: Re: [motm] Annoying MOTM envelope behavior

From: elhardt@...
Date: 2002-05-09

Tony Karavidas writes:

>>I see all the same behavior (just popped it on my scope) except for #3. If
the attack = 0, I get a 315uS rise time regardless of the other three pots
(unless of course the release falls into the next attack phase. I do see the
sustain portion climb to 6.8 V under certain pot settings. Hmmm.<<

It's all very strange. I was going by my ear on #3. I just don't seem to
get a hard attack but I haven't digitized it to see just how fast it is. I
did however try your UEG for comparision even though it's not a typical ADSR
and I didn't experience any of these problems.

synth1@... writes:

>>Just a few initial questions:
a) Are you ∗sure∗ these are the "Rev B" EGs (with the TRIG wire mod)?
b) What is the GATE source?
c) Are you using the TRIG input as well?
<<

a) I bought all my 800's after the trig mod, so yes, they are all Rev B. I
have a total of 6 of them. Just to be sure I didn't make a global mistake
when I built my first batch, I just connected one from my second batch and it
behaves the same. Since Tony or Encore also sees these things, I have to
rule out a mistake on my end. That's the confirmation I wanted. I surprised
the rest of the list is silent.

b) My gate source is the Kenton Pro-2000. It's set to a 5v gate, but behaves
the same when set to 15v.

c) I'm not using the trigger input.

It's almost as if I'm playing on a touch sensitive keyboard when using my
MOTM. How I play affects the ADSRs and thus the brightness and loudness of
the synth. That of course shouldn't be the case.

-Elhardt