[sdiy] moog high pass flter

[Scott Stites]

I'm using Rene Schmitz's MS-20 filter clone, and I'd say I use it 25% of the time
in the high pass mode.  One app that I really like is using the high pass
resonance to actually fatten the sound of a single VCO.  I input a sawtooth wave
in the upper register, crank the resonance all the way up, and then tune the
cutoff to where I hear a very low tone plus the fundamental while holding a note.
 This results in a timbre that I suppose may be similar to a suboscillator
tracking the oscillator, only it sounds like there is more than just one tone
below the fundamental frequency of the oscillator.  It tracks the keyboard
perfectly, and really makes it sound like there is so much more than just one
oscillator at work.  I've never been able to get this effect in the low pass
mode, or with any waveform other than sawtooth.

Scott

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On Sun, 08 Dec 2002, "Gavin" wrote:

> i think High Pass is incredible.  particularly on the Yamaha CS synths.  The
> reason someone who's experience with the Moog High Pass might not be so into
> high pass is most likely because the moog ladder or the ssm2040, basically
> the same filter, is extremely rich in the low end, but very weak in the high
> end.  I think the fault is in the filter, not the mode... check it out

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