Subject:

Questions

Kris Northern wrote:

I have a couple questions I've never quite resolved...

If I make a patch and set the Osc freq at G and play a C on my midi controller what note is really being played?
Why can't I dial in x1.5 or x3 on a LFO slave? The closest I can get is 1.498 and 2.97. Is there a way around this? I've been retriggering the LFO's before they can drift too far off course.

Jan Punter wrote:

From E to G - let's count F F# G is 3 semitones up so the osc will play all notes 3 semitones higher than normal, so a C will be (C#, D,) D#

Using trickery with constants and mixers you could probably get quite close, but... > I've been retriggering the LFO's before they can drift too far off course. < Actually I think this is the best solution as this is the only way you can control the phase difference between lfo's. No matter how arbitrarily close you could get to the factors you'd want, you would never be sure about the phase. Resyncing solves this, also this is a very DSP cheap solution where getting the ratio's better would require additional modules. As to why this is the case... a representation problem for the number system as used by the DSP program. Factors (or fractions) of two it can do easily, others have to be approximated. But it would have been nice to have builtin fine control on the LFOs, just as on the audio Osc's. Phase control would have been a nice feature as well...