I've been having a few thoughts about this panel myself, but I was looking at using sliders for the main filter controls (a bit like the original)
Using a 3U panel, I would keep the Resonance and mix controls as rotary (along with the mode switch)down one long side of the panel, this would than allow the use of a stooge panel for mounting the PCB. I would then have 3 groups of 3 sliders, probably horizontal, spaced down the panel.
At a squeeze, and using limited length sliders, you could probably cram it all into 2U (though the sliders may have to be rotated 90 degrees for this to work).
Work is in the way of me sitting down with FPD to sketch this out, but I should have time at the weekend to have a play and see what comes out.
Regards
Mike Gorman
--- In ModularSynthPanels@yahoogroups.com, "wjhall11" <wjhall@...> wrote:
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> Despite JH's PCB design that allows for "linking" more than one PCB together in tandem, I can't see enough benefit in doing so to warrant a panel specially designed for it. In fact, having two separate resonators have distinct advantages. Dad and I will build two such ones.
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> Ken Eldhardt, in an Electro-music post, says "About number of bands and overlap. First keep in mind for comparison that the Polyfusion formant filter only has bandpass filters, and covers a more limited range than the Moog. For acoustic instrument formants, the bands work well. If an instrument has two predominant formant peaks, they always seem to fall into two different Moog bands, so Moog picked the frequencies well. Having a 6 band filter bank where the additional 3 are offset a bit for overlap doesn't really get you anything. Running two resonators in parallel to give you 6 bands means you're going to have plenty of overlap. You'll have 2 filters for each range, so there's not much of a need to change frequencies. And there's nothing about the 7.5K range that needs fine tonal control anyway. In addition, I mentioned to JH, that the more bands you use, the more you water down the result. I usually find that I only need one or at most two filters beyond the normal lowpass already in the synth I'd be running through it."
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> Having two separate resonators, then, actually addresses the purpose of gaining additional bands. In addition, though, separate resonators could be used for stereo processing, for having different mode settings, for running in parallel - in series - for different voices.
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> So I set out to design a panel for a "single" three-band resonator. This design is preliminary. I guessed at the features based on the photos of JH's prototype, but I think I've taken good guesses. Having a direct-through DRY OUT jack (just hot-wired to the IN jack) would serve for joining two (or more) of the resonators when required.
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> Bottom line: it fits in 3U.
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> URL to image: http://www.dragonflyalley.com/images/JHpolymoogResonator/JHPolymoogResV1vIIwidth1-92in.jpg
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> How does it look? I see areas for possible improvement.
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> Will (and Bill)
>