Phase question

MIDIbox SID
1

I have a problem getting the oscillators running freely. I have PHS in the lead engine set to 00 on all oscillators, but they still always start with fixed phase. What might be the issue?

 

Eg. I have the init sound, and I enable all oscillators, the sound triggered is always the same, but as soon as I change for example one oscillators tuning, the phases change, and even if I set back to the original settings, the phases have changed.

 

I have 043 in use.

 

Also, has anybody an insight about how the global Phase knob in the CTRLR panel actually affects the oscillator phases?

2

As long as the oscillators are running at the same (or dividable) frequency, they will stay in phase.

Once you change the finetune value, they should get out of phase again.

 

 

Also, has anybody an insight about how the global Phase knob in the CTRLR panel actually affects the oscillator phases?

 

It’s the same phase that you find in the OSC menu page of the CS.

There is only a single phase parameter for all 3 oscillators.

 

Best Regards, Thorsten.

3

Ah yes of course, I was stupid again… If the tuning is the same, it does not matter if the oscillators are in sync or not since they are DCOs…

 

It was just confusing me when doing a coarse tune change, and going back to the original value resulted in different (static) phases.