[sdiy] Simple AR tips

[Peng]

I just finished one (of the many) AR envelopes, for the most part it's the Charles Broduer schematic. Consists of 2 diodes, 2 pots, a 741, couple resistors, and LED. I tended to avoid these designs but I'm expecting a MIDI to trigger board from Mr. Maddox and needed envelopes that would reflect the trigger velocities. 
 First problem was the envelope would slow up considerably when it gets close to zero. Not good for percussion. I fixed that by using an offset trim (striaght from TL071 data).
  I've just started experimenting with the AR so if anyone has any opinions or suggestions or tips, please let them flow. Such as capacitor types ( found that polyester SEEMS quicker than the specified electrolytic ). I would like to tweak the response curves but not sure how to approach it.
  Any techniques for employing velocity in patches would be very interesting to hear about.
 
Thanks,
P.

		
---------------------------------
Do you Yahoo!?
vote.yahoo.com - Register online to vote today!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20040918/68732571/attachment.htm>