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Dave Smith Instruments SYNTHESIZERS

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keyboad tracking anyone?

2007-10-05 by nodnoll

Hello everyone.

I have an issue with keyboard tracking (keyboard follow parameter).

It looks like there's no parameter on Evolver (I purchased mono
desktop a week ago).

Here are few conclusions of mine. Someone will probably say "no sh*t
Sherlock" but I would like to be corrected if I'm wrong:


There's Key Amt parameter for filter tracking. If everything is
set/assigned properly, it tracks the keys accurately, providing glide
if necesarry. With self-oscillating filter and no oscs you can play
sine wave without any problems, okay... The value of 72 represent an
accurate  C0 to C1 octave jump, being keyboard tracking of 100% (as
labeled on many synths). So the evolver value of 100 is around 120%?

But what if I want to turn off (or slightly change) pitch tracking of
one of the oscillators? There's no dedicated parameter for that.
Hm...is it possible to trig separate oscs with differetn MIDI channels?

There is no Filter Key Amt in modulation sources (Am I right?).
However there is a modulation source called MIDI Number, and it could
be assigned to frequency of any (or all) of the oscillators, right?

OK, but the value goes from -99 to +99. Since all 4 oscs are set up on
keyboard tracking of 100% by default, I have to program two modulation
slots to -99 to get the pitch track 0. (Each value of -99 & 99
represents keyboard tracking of -50% & 50%). Now, if I want one
oscillator to play keys 100% in reverse (good for fun but for osc sync
too), I have to spend 4 modulation slots! Quite a waste of precious
modulation parameters!

Plus, oscillators (both A and D) are not accurate in that condition;
some octaves are working properly, some of them are jumping up one
octave. Applying slow glide thru all the frequency range sound like a
LFO with reverse saw..

I guess that has something to do with mapping and/or osc freq range..

So, are there any less painful option for keyboard trackings???

Forgive me if there's some obvious thing that I can't figure out.

Thanks

M.

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