Thanks for the feedback and questions, that will allow me to update the documentation.
How much precision are the Freq FTun values? (in steps or bits) and wich value range?
Is it possible take FTun to negative values?
Possible values are from -1.0 to 1.0 which correspond to a frequency variation of -5% to 5%.
Could 2nd operator set to 0.5 ratio? The web manual shows values from 1, to 4.00 and etc.
The manual is not clear an only give examples (i'll change that).
Possible frequency values for all 6 operators are from 0.00 to 16.00 with a step of 1/12 (= 0.0833) to allow decimal values such as 1/4, 1/3, 1/2, 2/3, 3/4.
Is it possible to take negative travel of LFOs to get Ramp Down sawtooth ?
All LFO oscillator oscillate between -1.0 and +1.0.
Which can be moved with the Bias parameter to (-2, 0) by setting the bias to -1.
Is it necessary re-trigger the note to hear the op. amount increments?
I"m not sure i anderstand this question.
I assume you're talking about the modulation index, which is the amount of modulation of an oscillator by another.
They can be modify realtime during a sound, which is the base of interesting sounds ;-)
Xavier