[sdiy] Pot panel scales

[Andre Majorel]

On 2010-09-23 13:26 -0400, clarke at robinsononline.com wrote:
> From: Andre Majorel
> 
> > Few people bother making useful scales (% or dB attenuation,
> > Hz, oct/V...). It's a pity because it would give you a
> > chance to associate a subjective sensation with an objective
> > measurement. And it would make your notes useful on synths
> > of a different model or calibrated differently.
> 
> I've always been impressed with the Buchla oscillators, which
> indicate actual frequencies (440, 880, etc.) on the tuning
> pots, but I can't imagine how I could DIY such a thing. I'm
> very new at this, but so far I'm doing my panel graphics well
> in advance of everything else.

It takes more planning but PostScript is up to the task.

> I could see using the trim pots to tune an oscillator so one
> of the values on the scale is correct, but it would be plain
> dumb luck if any of the other values were the slightest bit
> accurate.

The idea is not "if I align the indicator line with the 0.5
oct/V mark, I'll be playing in quarter tones". It's more like
"it's a 10 VPP triangle and the knob is at about 0.4 oct/V so
now I know what a +/-2 octaves warble sounds like".

I may be wrong but I don't think digicams can do that for you
yet.

-- 
André Majorel http://www.teaser.fr/~amajorel/