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. > > >
Message
Re: Enabling portamento mono mode
2007-12-10 by elwro07
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