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MOTM-450 Fixed Filter Bank Demos

2003-05-14 by Paul Schreiber

Uploaded some various demos of the MOTM-450 Fixed Filter Bank to the following directory:

http://www.synthech.com/demo/ffb

Various source material is used to try to show what the filter sounds like. It's sort of
difficult in a way, like trying to demo EQ. And then the MP3 encoding gets in the way. Most of
the demos are the source being filtered by 1 band or sets of bands at a time, then manually
tweaking those bands "down" while bringing others "up".

The filter frequencies are the same as the Moog 907A, but the filter circuit is completely
different. We use a specific audio topology called a FDNR (fud-ner, or Frequency Dependent
Negative Resistance) that has linear phase and very very low noise and distortion (this is the
filter type used on Apogee DACs and ADCs).

Thanks for listening.

Paul Schreiber
Synthesis Technology

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