[sdiy] Verniers for Patch Recording

[Ian Fritz]

At 04:25 AM 10/1/2003, Andre Majorel wrote:

>On 2003-09-29 22:50 -0600, Ian Fritz wrote:
>
>Clever. But with a simple deskjet printer, you could print an
>ordinary scale with 5 subdivisions per division (i.e. 1/50
>precision) and that seems good enough for me (+/- 1%).

True, you can get 1% that way.  But for my old eyes that would take a 
fairly large diameter knob.  The vernier technique gives better resolution 
for a given knob diameter.

>If it's a critical parameter, it might make more sense to write
>down not the physical setting of the knob, but the actual
>result. For example, by using a frequency counter or DVM on the
>output of the module. This is more accurate and immune to
>long-term and short-term drift.

Well, if your synth has voltage control of every parameter, then yes, you 
could bring each control voltage out and measure it.  But what would you do 
for your EG attack and decay times if they are set by resistance rather 
than voltage?  Photograph the envelope off a scope, perhaps.

Interesting to think about all the options!

   Ian