I was right. There is no SIMPLE way. :)
OK, enough about electronics. I'll take that to synth DIY. Does anyone
understand
women? <stoogly snicker>
Larry H.
----------
> From: Paul Schreiber <synth1@...>
> To: motm@egroups.com
> Subject: Re: [motm] phase shifting WAS: module concept
> Date: Sunday, April 16, 2000 5:57 PM
>
> A filter can shift one frequency a set amount. BUT...for a anything-in,
> anything-out circuit, you cascade
> a zillion ∗all-pass filters∗ (also called a PDN: phase-differencing
> network). Electronotes had a good
> issue on the proper design of these. You need a 90 degree shift from say
20
> to 20kHz: takes something
> like 14-16 filters in a row. This is what Bode called a "dome filter".
>
> Paul S.
>
>
>
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