Discussion about the Korg PolySix synthesizer

Yeah, this sounds wierd to me?!
Pianos get stretch-tuned because their strings don't 
behave like perfect linear harmonic oscillators, 
so the harmonics generated by strings are slightly 
sharp (? I think it is...) 
If you didn't stretch tune it, you'd hear (for instance) 
beats when you play a simple octave, as the 1st harmonic
on the lower note would be out of tune with the fundamental

of the upper note...

....but the Polysix's VCOs surely produce sawtooth 
and rectangle waves where the harmonics are linear?
Thus there'd be no need for stretch tuning...

Unless the PS-6 VCOs are a bit wierd!?

Personally, I'm no great fan of equal temperament, 
and love mucking around with microtunings and stuff - 
but the PS6 stretch-tuning calibration doesn't sound 
like the ability to alter temperament (ie, change the
value of the various "semitones" in the scale) ...


 --- Tony Allgood <oakley@techrepairs.freeserve.co.uk>
wrote: > > Switch SW1 to front position and enjoy the
"Schwebung"
> (dont know the
> English word..) created by the stretched tuning.
> 
> I must admit having tuned a few P6s in my time, I prefer
> the sound of
> unstretched tuning on any synth. Whilst I can understand
> the need to
> stretch tune pianos, I don't really see the point of
> doing this to VCOs.
> The harmonics are locked to the fundamental whatever the
> base frequency
> is tuned to.
> 
> I tuned my own P6 to true linear fashion. The sound of it
> fitted in
> better into my mixes, and it sounded better on its own.


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