Dominic Ward

I'm trying to randomize the period of phasor only when it has finished a cycle (or starts one), rather than during.

I think an external phasor would be required somehow but can't think it through.

help-with-randomizing-phasor

There is Volker Bohm's vb.phasor0~ external - a phasor that only responds to frequency changes at 0 phase that you should download and mess with.

Also here is a way of doing it using Andrew Benson's wait~ external (it could be done with sah~, but wait~ will more accurately sample in response to a phasor~ ramp). I think you can get it from the share pages.

The potential problem with this method (and any other I can think of in msp) is that it relies on a feedback loop, which induces one signal vector of delay. For example, if you have a signal vector size of 128 then the patch might not work correctly above 344Hz. The trade-off is, if you decrease your sv size the cpu hit of the whole patch will increase.

I've only mocked up an example of this, you'll have to add whatever scaling you want to the output of noise~.

Also here is a way of doing it using Andrew Benson's wait~ external (it could be done with sah~, but wait~ will more accurately sample in response to a phasor~ ramp).  I think you can get it from the share pages.

The potential problem with this method (and any other I can think of in msp) is that it relies on a feedback loop, which induces one signal vector of delay.  For example, if you have a signal vector size of 128 then the patch might not work correctly above 344Hz.  The trade-off is, if you decrease your sv size the cpu hit of the whole patch will increase.

I've only mocked up an example of this, you'll have to add whatever scaling you want to the output of noise~.


just downloaded wait~ external and this works as needed, pity about the delay but hey.

That problem about feedback loops and their minimum vector size delays has always bugged me a lot about Max. You can put it into a poly~ with a lower vector size of course, but that's not always very practicable either. But I guess this is the kind of limitation that is always hard to avoid with programs that are focused on live performance efficiency (contrary to stuff like Csound).

Help with randomizing Phasor~