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 devetron
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