What makes the Moog fixed filterbank so special?

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Unfiltered

Re: What makes the Moog fixed filterbank so special?

Post by Unfiltered » Wed Feb 02, 2011 5:13 am

what is the difference between a FFB and a graphic Eq? seems like the same principle to me.

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MC
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Re: What makes the Moog fixed filterbank so special?

Post by MC » Wed Feb 02, 2011 11:20 am

Graphic EQs have boost and cut.

Moog FFB is cut only, as is the MuRF.
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jhaible
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Re: What makes the Moog fixed filterbank so special?

Post by jhaible » Wed Feb 02, 2011 11:31 am

MC wrote:Graphic EQs have boost and cut.

Moog FFB is cut only, as is the MuRF.
And Moog FFB has an interaction between bands (notches, mainly), that is in the same order of magnitude as the nominal operation. Very characteristic, once you've heard it, and unlike any EQ.

JH.

johnjay
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Re: What makes the Moog fixed filterbank so special?

Post by johnjay » Mon Feb 07, 2011 2:52 pm

Rudelius wrote:Hi,

I have been wondering for a while what makes the Moog fixed filters so
special in comparison to those of some other manufacturers.
...

Ruud
Well if you really want to know then you might want to check this out.

44 minutes into the video he covers the classic moog filter

http://www.blip.tv/file/711908

Edit: and it's continued here:

http://www.blip.tv/file/738388

To start at the beginning of a very long story check this out.

http://users.ece.gatech.edu/lanterma/ems/

John

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Re: What makes the Moog fixed filterbank so special?

Post by nicholas d. kent » Fri Feb 18, 2011 5:23 pm

>Well if you really want to know then you might want to check this out.
>44 minutes into the video he covers the classic moog filter

Though this thread isn't about the classic Moog VCF, not the same thing at all as the Moog Fixed Filter Bank. Or does he discuss the filter bank at some point and I was just impatient?

Jürgen Haible, who had mentioned his prototype for ebay sale on this thread (I bid but didn't win due to budgetary reasons) --has an interesting technical page on with discussions and PCB options for using real inductors or alternatives.
http://www.jhaible.de/ffb/fixed_filter_bank.html

johnjay
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Re: What makes the Moog fixed filterbank so special?

Post by johnjay » Sun Feb 20, 2011 1:34 pm

nicholas d. kent wrote:>Well if you really want to know then you might want to check this out.
>44 minutes into the video he covers the classic moog filter

Though this thread isn't about the classic Moog VCF, not the same thing at all as the Moog Fixed Filter Bank. Or does he discuss the filter bank at some point and I was just impatient?
...
Sorry, I misread the question. I don't recall him covering fixed Moog filters in the course.
The link you posted is helpful though.

John

jhaible
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Re: What makes the Moog fixed filterbank so special?

Post by jhaible » Mon Feb 21, 2011 5:52 am

FYI:
I have two more prototypes on ebay right now:
item numbers

160547987865

and

160547972547

JH.

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