Archive of the former Yahoo!Groups mailing list: MOTM

previous by date index next by date
previous in topic topic list next in topic

Subject: RE: [motm] Purchasing decisions

From: "Dave Bradley" <daveb@...>
Date: 2000-04-05

With a resonant highpass and resonant lowpass hooked in series, you get 2
resonant peaks at the corners, instead of 1 in the center for a single
bandpass. Also, you can control the cutoffs separately, like have an LFO
modulating the HP but an envelope modulating the LP.

Plus, if you hook the 2 filters in parallel, then you can get 12 db/oct
notch filtering, doubly resonant peaks if both are set to NF, etc. Just a
lot more flexible.


> -----Original Message-----
> From: Brousseau, Paul E (Paul) [mailto:noise@...]
> Sent: Wednesday, April 05, 2000 12:35 PM
> To: ''
> Subject: RE: [motm] Purchasing decisions
> I'm not quite clear... how is this different from a band-pass filter with
> modulated Q / width and frequency? Not that it wouldn't be
> really cool, I'm
> just wondering if I'm missing a nuance?
> --PBr