Chirp generator

Andrew Schrock aschrock at
Sat Mar 21 04:09:26 CET 1998

On Thu, 19 Mar 1998 halfmast at wrote:
> I want to build a stomp box that would produce an attacking chirp sound
> when activated.  What is the easiest route?  I tried attaching a
> simple attack/release envelope to a trigger pulse but the sound was a
> weak blip instead of a harsh chirp.  Has anybody built anything like
> this?  Any advice would be appreciated.

You need something a little more raw... try hooking the blip env up to a
VCA with a saw LFO as the source... most LFO designs can be pushed up to
audible range with replacement of a capacitor. 

'course, this might be overkill... 


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