just wondering, is there some kind of internal modulation of the pitch? At least with my unit, the pitch always wanders around a little bit, like there is some kind of small randomization build in?
Some further explanation: i am running a vco into the left input, and the left output goes straight to the 4 i/o. No further patching. Then i adjust density and size until i hear some grains. Now, every time a grain is played, it has a different pitch which randomly drifts a couple of notes around the pitch set by the pitch knob.
Edit: Just measured the voltages on the pitch pot and on the two pitch cv inputs. They all seem to be stable. ( Voltage at the center pin of the pitch pot corresponds to the set value and is stable, Voltage at the pitch cv inputs is not 0 but 1.186 for v/oct pitch cv and 2.377 for pitch cv.)
Already owned a supercell (which shares the firmware with cirrus?) and the pitch problem didn't occur there, the pitch doesn't jump around like on my cirrus.
I know this behaviour, but the drift is only a few cents, not a couple of notes. A small drift makes sense IMO, to keep the crain cloud moving, not so static. But your comparison with supercell tells another story - I use the supercell/microcell firmware without modifications. I will check this!
Hm, maybe it has something to do with the missing aux input wich is used to modulate all parameters when the internal random modulation is disabled? Already tried to disable the internal modulation like described in the supercell manual:
To disable the internal random CV, press both of the mute switches for about
two seconds. There is no visual feedback to indicate the current state of the
modulation, so try setting the Pitch attenuator to its maximum position in order
to determine whether the randomization is enabled or disabled.
I tried the same as the OP describes and get the same - it's definitely semitones as opposed to cents. I guess next step is to figure if there is a way (with this version) to disable the internal modulation?
Just for balance I should add I've had an incredible time getting to know the cirrus today - it's batshit crazy! Internal modulation or not I am pleased!
Second this. Its far exceeded my expectations. Granular synthesis is the reason I got interested in modular to begin with but it always seemed like I would have to sell a kidney to access it. So I can't thank you enough Robert for bringing it to the masses!