Page 2 of 2
Re: What makes the Moog fixed filterbank so special?
Posted: Wed Feb 02, 2011 5:13 am
by Unfiltered
what is the difference between a FFB and a graphic Eq? seems like the same principle to me.
Re: What makes the Moog fixed filterbank so special?
Posted: Wed Feb 02, 2011 11:20 am
by MC
Graphic EQs have boost and cut.
Moog FFB is cut only, as is the MuRF.
Re: What makes the Moog fixed filterbank so special?
Posted: Wed Feb 02, 2011 11:31 am
by jhaible
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.
Re: What makes the Moog fixed filterbank so special?
Posted: Mon Feb 07, 2011 2:52 pm
by johnjay
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
Re: What makes the Moog fixed filterbank so special?
Posted: Fri Feb 18, 2011 5:23 pm
by nicholas d. kent
>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
Re: What makes the Moog fixed filterbank so special?
Posted: Sun Feb 20, 2011 1:34 pm
by johnjay
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
Re: What makes the Moog fixed filterbank so special?
Posted: Mon Feb 21, 2011 5:52 am
by jhaible
FYI:
I have two more prototypes on ebay right now:
item numbers
160547987865
and
160547972547
JH.