MOTM

Just wondering if Paul will come out
with an old Moog syle 8 or 12 band 
fixed filter bank with passive R/C
networks being set up w/
discrete trasistor pre amp and output
stages. I'm working on one now myself
because I have a Bruel & Kaejer 1/3
oct filter bank from 1959 all passive
but I can only "dial" one band at a time
and modification would be a pain in the
ba-zoo. By the way ....I love my dark 
star and feed  it through MOTM 420s' and the
big old B&K filter bank to get a tree
full of locust bugs singing @ 1250 Hz peak
band pass freq. selection. - Awsome for 
some of my more ambient music compositions.
I have a modular rack that is 2 1/2 feet tall
8 1/2 " deep and the obvious 19" across with
custom made modules from my head and from
schematics of various synth manuals and
electro-notes. Bernie is so freakin' uptight
when people post that stuff on the net! oh well....
I digress on this comment. I just like fixed
filter banks because You can get a small 
band or "cluster" of related tones and once I
heard the things a very tight narrow band pass
function can do (i.e. fixed filters in paralell)
w/ pot control per band- it was love at first
tweak- feed white noise or ring mod garbage in
and then get a really warm cluster of tones 
out from turning up just a couple bands and
experimenting! nice. I do some real ambient
stuff and some other more Skinny Puppy cyber-punk
music too - Gary Numan is a fave too. 
Ummm - Skinny Puppy = not to be confused with
the more esoteric group "Chubby Kitty" he- he OK
OK - !!!! bad  joke..- , so sue me.....
Ta- William Hanson.

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In a message dated 4/7/2000 12:49:45 AM, williamneumann@... writes:

>
>Just wondering if Paul will come out
>with an old Moog syle 8 or 12 band 
>fixed filter bank with passive R/C
>networks being set up w/
>discrete trasistor pre amp and output
>stages. I'm working on one now myself
>because I have a Bruel & Kaejer 1/3
>oct filter bank from 1959 all passive
>but I can only "dial" one band at a time
>and modification would be a pain in the
>ba-zoo.


I'd like to hear how this project goes. As far as a MOTM fixed filter bank 
goes, I remember the suggestion, "why not just buy a third octave graphic 
EQ?" They do make these pretty cheap now.


 By the way ....I love my dark 
>star and feed  it through MOTM 420s' and the
>big old B&K filter bank to get a tree
>full of locust bugs singing @ 1250 Hz peak
>band pass freq. selection. - Awsome for 
>some of my more ambient music compositions.


My comment about the DSC was based on my finding it needs other modules to 
make interesting sounds with it (like LFOs or EGs as well as one or more CV 
sources), it is a sound effects chip (and has those kind of sounds), and 
really (IMO) doesn't warrant being gutted and rehoused (for an additional $80 
or more) in a MOTM package -- I'd rather spend that money on more MOTM 
modules. 

Once again, if ANYONE DID gut their Blacet modules, I would buy two DSC front 
panels, and a bunch of the stock 50K pots that come with Blacet kits in order 
to just clear up one mess in my house.

John (I noticed everyone who answered my rhetorical question [about whether 
the DSC is worth gutting out and putting in a MOTM package] in the 
affirmative, is still using the original FracRack package) Barlow

In a message dated 4/7/2000 1:33:42 PM, jhaible@... writes:

>A filter bank such as the Moog Fixed Filter Bank or the EMS 8 Octave Filter
>Bank allows attenuation of a single band as low as zero (or "minus infinite
>dB").
>Both the sound, and the implementation are very different.

Going to zero, eh. That, I did not know! I did use the Moog FFB on Moogs 
(model 12 & 15) and I really did like it, and I know others on this list do 
as well.

>BTW, I have built a clone of the EMS filter bank many years ago, and it
>sounds wonderful. Filters are not as steep as the Moog's, but it's very
>smooth and "musical".

How steep are the Moog's? Didn't they use LC filters or something equally 
strange?

>I've added some patchpoints and overall level controls in order to get
>dynamic control over individual bands with external VCAs. It's part
>of my JH-3 Modular. I don't have a picture of the filterbank, but you see
>a tiny part of the front panel on this picture:
>http://www.synthfool.com/diy/hj7m.jpg
>(on the right side, in the middle)


Thanks! I'll take a look! As I said, this has been brought up on the list 
before, so if MOTM builds one, we will buy!

And I'd like to second Bradley's welcome to you Juergen, your designs have 
been really well received here!

John (I just wish I had more rack space to put my already completed modules 
-- I could fill another set of rack rails right now) Barlow

If you want an old passive cut-only filter set you can find used Altec and 
White units on eBay at low prices.  The Altec units with the rotary switches 
for each band are incredibly accurate.

Ivan


In a message dated 04/07/2000 3:49:20 AM, williamneumann@... writes:

<< Just wondering if Paul will come out
with an old Moog syle 8 or 12 band 
fixed filter bank with passive R/C
networks being set up w/
discrete trasistor pre amp and output
stages. I'm working on one now myself
because I have a Bruel & Kaejer 1/3
oct filter bank from 1959 all passive
but I can only "dial" one band at a time
and modification would be a pain in the
ba-zoo.  >>