AW: More on moog filter band pass mode.

[BJ]

Haible Juergen wrote:
> 
>         > Strange, usually a HP and a LP in a mix makes a Notch response!
> 
> Hmm, I fear there is nothing like "usually" for this kind of stuff.
> Change the phase and everything's different. It's just that we're
> "used" to the SEM filter working that way.

I'snt the SEM a odinary ca3080 multimode filter?

> You can work with trial and error, listen to it and decide what sounds
> interesting - or do some complex maths, or run a little simulation.

You are right, there is nothing like a HPfilter here i was to fast to
type,
it seems to mee thet it are more like a (as you said)phase inversion of
the 1 or 2 pole stage
(depends vere you take the signal out) and that makes the strange BP
response.

BJ