But what about sequencer's STEP button ?
With sequencer's back switch in DISABLE position STEP button has no
function at all so i think maybe this button would be good for
enabling portamento.
--- In korgpolyex@yahoogroups.com, "devetron" <devetron@...> wrote:
>
> I, for one, would prefer to retain the chord memory mode. I like use
> it for playing 2-3 octaves of the same note in mono with one finger.
> It looks like you are leaning towards keeping it after all. Thanks
> for all your hard work.
>
> --- In korgpolyex@yahoogroups.com, "korgpolyex800"
> <korgpolyex800@> wrote:
> >
> > I could rewrite the code to toggle between Poly and mono mode using
> > the Poly key. Another way might be to make the Poly key the selector
> > for Poly, Mono, Chord and Hold mode. Each time you press the poly
> key
> > would move you into the next mode. That would free up the chord and
> > hold buttons to be used for selecting global mode and extended
> > parameter entry modes (or other things if we decide to add more).
> >
> > What do you all think?
> >
> > I managed to finish the pitch "bending" part of the mono mode
> > portamento last night. Unfortunately, the results are not as good
> as I
> > had hoped for although I was not completely surprised at the result
> > that I got. The method I used to simulate portamento was to use
> pitch
> > bend (which is a true analog bend) to slide one semitone up or down
> to
> > track towards the new note. Once the bend has moved the TG half a
> > semitone, the DCO's are reprogrammed to change to the note above or
> > below while simultaneously the bend is reset back to zero. This
> would
> > give the portamento effect by ramping the bend a semi tone and
> quickly
> > switching DCO semitones.
> >
> > Well it works, and it gave me great joy to hear it working, but
> alas,
> > resetting the bend is a little slow and you can clearly hear the
> > oscillator output has a little glitch each time that the semitone
> note
> > change occurs. I now need to determine if the glitch is caused by
> the
> > master clock being incapable of tracking the output of the DAC when
> a
> > square wave edge change occurs in the bend or if the DAC sample hold
> > circuit is too slow. If it's just the sample and hold then I may be
> > able to reduce the sample hold capacitor to improve the highest
> > possible rate of change. If it is due to the master clock not being
> > able to change frequencies fast then I think we might be out of
> luck.
> > So much so that the only way to get good portamento would be to
> build
> > a new master clock that was able to slide the full five octaves.
> >
> > Mike.
> >
>