[sdiy] MIDI-CV accuracy / Volt-a-meters / etc

John Loffink jloffink at austin.rr.com
Sun Oct 9 17:47:57 CEST 2005


If you are playing chords tuned to the pure intervals of just intonation,
then the answer is yes, you can hear a 1 cent tuning error.  You will hear
it in the beating of the harmonics against each other.  As the MOTM-650
MIDI-CV can program microtonal scales, the accuracy will be highly valued.

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com


> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl [mailto:owner-synth-
> diy at dropmix.xs4all.nl] On Behalf Of Seb Francis
> 
> Personally I don't see the point in this much accuracy in a MIDI-CV.
> It's a nice engineering exercise but can anyone actually hear a 1 cent
> (0.000833V) tuning error?  I would have thought that 4 1/2 digit
> accuracy would be enough for even the most super-tuned person.  In any
> case I doubt that any VCO is stable enough to benefit from more
> accuracy.  As an example, the MOTM 310 is quoted as tracking <0.05% and
> drift <0.5Hz/24 hours.
> 
> Surely the *only* way to get more accuracy is to go 100% digital, then
> everything can be clocked out with quartz crystal precision .. and is
> this a good thing?
> 
> Seb





More information about the Synth-diy mailing list