Chirp generator

[Rene Schmitz]

At 21:02 19.03.1998 -0500, you 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.
>
>
>
Well, a chirp is a signal whose frequency is proportional with time. 
So I would go for a saw-lfo(s) that controls amplitude and frequency of 
a (linear) vco. 

-René

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