[sdiy] Env gen question

[Scott Gravenhorst]

Oh, but the simplest of modules can be the most useful.
Isn't it odd how we are annoyed by such things?  But 
at least there are easy methods to accomplish such
seemingly mundane, albeit important things.  We lust after 
that contortionator, the per-knobulator, distortionator, 
alpha-disonic-modulator, thingamjig and muffler-bearing...  
Really, these "inverter" things are basic analogue computer 
elements and are, IMHO, "must haves".  AND they are some
of the easiest things to SDIY.  Ah, but who wants to
build such a boring thing as an "inverter"...  Then again,
think about life *without* them.

Peter Grenader <pgrenader at mksound.com> wrote:
>This is exactly what I end up doing....I run the inverted output through a
>Buchla/Serge type voltage adder I slapped together...but it would be a lot
>easier if i didn't have to!
>
>on 3/6/02 2:37 PM, >>>marjan<<< at urekar.m at EUnet.yu wrote:
>
>> Peter Grenader wrote:
>>> 
>>> Don't know about MOTM, but the Doepfer's ADSR invert out goes from 0 to -,
>>> not from high + to ground, inverted like i wished to hell it did.
>>> 
>> 
>> that shoud be easy to fix, find the inverting opamp that inverts env
>> signal
>> connect trimmer from summing point to -V and trim to get 0 when env hits
>> it's peak (or max in - range) ie that sustain is at 0 volts (or whatever
>> you need), that's why inverters with manual offset come handy...
>> 
>> 
>> 
>> marjan
>> 
>> 
>> me    : Marjan Urekar
>> e-mail: urekar.m at eunet.yu
>> s-diy : http://surf.to/marjansystems
>> music : http://go.to/forcemajeure
>> 
>> 
>
>

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