Archive of the former Yahoo!Groups mailing list: Korg Poly800/EX800 Users

i don't think playing a note with just any frequency is possible... there's probably a table of note-to-freq values somewhere hard-coded. if you remember, you can only detune "something" in double voice mode, and you detune the second voice by detuning the second master oscillator...

jure

On 7/12/07, Atom Smasher <atom@...> wrote:

On Tue, 10 Jul 2007, korgpolyex800 wrote:

> In the Poly 800 they used a tone generator chip that had 8 DCO's grouped
> as a pair of four with a separate clock for each pair. This naturally
> allowed a master oscillator to drive the clock input along with a simple
> detune circuit that would be used to make the second set of four DCO's
> detune away from the first four DCO's.
======================

wouldn't it be possible/feasible to get a four (or eight) oscillator
detune in a similar way to playing a chord: just tell each of the four (or
eight) oscillators to play a slightly different note...? instead of the
different notes being semitone intervals apart, they can be small
fractions of a semitone apart, ideally with a parameter to adjust the
detune.

i suppose that sound could also be done by inserting a chorus effect
between the oscillators and the filter, but then we're in the realm of a
hardware mod.

i'm just trying to imagine a poly-800 in mono/portamento mode, with my
hardware mods, and some way to route velocity to the filter cutoff and/or
resonance...

--
...atom

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