Sometimes I think, that the sound of a patch changes, if you add a (not connected!!) module to a patch. This seems to preferably happen, when the DSP Load is high. The differences might be very thin, so I?m not sure if there is really anything about it or if I just need a holiday :-) Anybody seen/heared something like this ?

When using more than one oscillator in a patch the two or more oscilators waveforms will not be in exactly the same phase, their phase relations seem to be random, just like with analog oscillators. Which means that adding those waveforms together (or when they modulate each other) this will result in a slightly different sound for every voice. Analog oscillators also drift, resulting in a slow phasing, but digital oscillators are tuned exactly the same. Then the phasing is static so no gradual change in timbre and the sound can be different for every keypress/voice, as the phase relation is random.

Adding or deleting a module will change the phase relations in a random way, and the sound can change considerably. A patch with a high DSP load generally has more oscillators, if the effect seems to appear more on those patches this might be the explanation..

Generally there's three things you can do:

Detuning all oscillators slightly will result in a more lively, more 'analog' sound, the phasing gets dynamic and the sense of a different timbre disappears

Let one oscillator sync the other on the red sync input, but that might not give the sound you're after

Use only oscillators with a red sync input and connect those sync inputs to the keyboard gate. This will force/reset the oscillators to a phase relation of zero degrees on the moment you press the key. This way the sound will always be the same for every keypress and every voice. You can still detune the oscillators to make the sound more lively as the resetting will only appear on the start of the sound.