AW: audio to trigger

[Haible Juergen]

	>Also, if you go 555, you can have a 'refractory' period (it
triggers, but then 
	>cant trigger again for a fixed period). Using a comparator to
trigger a
	>fixed period 
	>555 you cd probably run off the raw audio & have very few parts.
	>
	>paul perry melbounre australia

This is essentially what I meant with the "monoflop" method.
All the audio tracks on my homepage are sync'ed like
that. Only that I have used a SSM2056-based envelope
generator for the monoflop (just because it was there in
the modular - it will surely work with a simple 555 as well !)
You must adjust the "on"-time manually to fit yout beat
rate (approximately), but then it works excellent, even when 
triggered from sounds that vary in amplitude.
(which is a problem when you work with envelope detector)

JH.