Welcome to the MOTM list, JH. Your 440 design sounds wonderful! I can now
get those fat brass sounds with my MOTM that I've been waiting for.
Dave Bradley
Principal Software Engineer
Engineering Animation, Inc.
daveb@... > -----Original Message-----
> From: jhaible [mailto:jhaible@...]
> Sent: Friday, April 07, 2000 3:30 PM
> To: motm@egroups.com
> Subject: Re: [motm] fixed filter bank development.
>
>
> > 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.
>
> Because a filter bank and an EQ are very different beasts.
> An EQ normally has symmetrical gain / attenuation, with typical values
> of +/-12dB or +/-20dB or +/- whatever.
> 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.
>
> 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".
> 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)
>
> JH.
>
>
>
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