12 pole analog filterbank

Wired · Post by **Wired** » Fri Jan 20, 2006 12:17 pm

anybody know where i can find a 12-16 pole filterbank, most seem to be 2-4, maybe 8pole

djmicron · Post by **djmicron** » Fri Jan 20, 2006 2:12 pm

6 pole is 36 db, 12 pole is 72 db.
If you really need it, try to connect more than one filterbank for doubling the range.

Wired · Post by **Wired** » Fri Jan 20, 2006 5:35 pm

do you know of a brand out there that has 10-16 pole filter (hardware)

djmicron · Post by **djmicron** » Sat Jan 21, 2006 5:07 am

i don't know,
but with the modular you can create your own very easily.

valis · Post by **valis** » Sat Jan 21, 2006 2:58 pm

What do you need filters that steep for?

Wired · Post by **Wired** » Sun Jan 22, 2006 12:09 am

not steepness, i'm looking for more depth in the filter with the number of poles, with 2 or 4 pole you crank thru it quickly, but with 12-16 pole, the depth would be huge by many poles overlapping,

valis · Post by **valis** » Sun Jan 22, 2006 2:03 am

Depth? You crank through what?

ChampionSound · Post by **ChampionSound** » Sun Jan 22, 2006 4:34 am

I wonder why you need that much 'depth' in these filters. For what purpose are you going to use them? Be aware that very steep filters introduce more phasing problems around the cutoff frequency.

<font size=-1>[ This Message was edited by: ChampionSound on 2006-01-22 04:35 ]</font>

nprime · Post by **nprime** » Sun Jan 22, 2006 1:22 pm

I think what you are looking for is greater range in the resonance control. The number of poles in a filter are not "stepped through" as you suggest. The poles themselves are fixed values once selected. As others have already said, the number of poles determines the steepnees of the filter cutoff. Be -6 dB per octave or -24 dB/octave, the steepness is not continuously variable as your response would suggest. The "Q" parameter on a parametric EQ would give you what you want.

R

Wired · Post by **Wired** » Sun Jan 22, 2006 1:29 pm

a guy who creates dopfre modulars told me that their is more depth in higher pole filters, resonance seems more dynamic because of the depth of the filter

valis · Post by **valis** » Sun Jan 22, 2006 10:00 pm

Have you tried the filters in modular II/III? ( Flexor? )