hello florian,

thanks for sending your results.

the spreaded notch filter is something
i'm using quite often, but more on the
digital domain (reaktor).
i'll try your suggested a100 patch in
the next studio session :-)

best wishes

ingo




--- In Doepfer_a100@yahoogroups.com , Florian Anwander
<Florian.Anwander@c...> wrote:

> Hi Ingo
>
> > please tell us your results with your a121/a122 attempt.
> So I tried yesterday evening. I have no *.mp3's, sorry. I tried to
> imitate your example with a beat. In general the sound is different

with

> two separated filters, becaus the cutoff frequency never is the
> identically, and also the phase relations are separated. This

makes the

> filtered sounds more vivid and less clean. When the filters are
> modulated by a slow LFO, the sound is quite similar; with the slow
> modulation the different behaviour of the separated filters is not

that

> dominant. But with a modulation from the envelope follower or an

ADSR,

> it gets more rough and partly queeky.
>
> A filter combination, which can not be done with the A 107 but

which is

> very handsome, is a notch filter with different cutoff frequencies:
>
> -->Lowpass
> / \
> Audio-> +->
> \ /
> -->Highpass
>
> If the both filter frequencies are set to suppress the mid range
> frequencies, the beat becomes very vivid and fits very good in the

mix,

> because now there is much "space" in the middle for other sounds.
>
>
> Florian