[sdiy] gate/trigger question

[Caleb Johnston]

Dear Experts,

I am trying to build a trigger/gate signal that will start the ADSR.  I 
heard that the trigger, which is a short pulse of high voltage, actually 
starts the ADSR envelope.  And then the gate is somewhat lower in voltage 
but controls the length of time the note is held.  True?

If I was building a gate/trigger output and I wanted it to be able to be 
used by most modular products what you reccommend as the voltages, currents, 
imped.?

Also, any good ideas for circuits as how to get that quick pulse for the 
trigger before the gate?

thanks in advance,
cj (newbie)

_________________________________________________________________
Join the world’s largest e-mail service with MSN Hotmail. 
http://www.hotmail.com