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Amplitude Jitter

0 votes

I'm wondering since the different versions of SampleCloud all have FreqJitter, GrainDurJitter etc.. Why not AmplitudeJitter??
This would be useful for creating natural sounding ambience beds with the (Morph1d) SampleCloud.

Maybe there's a simple way of doing amplitude jitter that I've missed?

Cheers, Andreas
asked Nov 27, 2020 in Using Kyma by andreas-frostholm (Practitioner) (390 points)

2 Answers

0 votes

I'm not sure if you are looking for subtle changes over longer times, or really fast stuttering?

I would try adding random control to the amplitude parameter of the sample cloud sound with smooth, so that the transitions are smoothed. I'm not at my Kyma, so I can't use the program to look for examples, but if you put a chopper-sound in to the amplitude parameter you'll get a "tremolo" style Amplitude modulation to start with.

So maybe you could think of it as amplitude modulation, Kyma can do it in various ways that could be considered as "jitter".
answered Nov 27, 2020 by anssi-laiho (Adept) (1,150 points)
Per grain amplitude jitter, a variation of level for the whole grain would be pretty cool
0 votes
Actually I just remembered! When a grain is startet the amplitude field is "sampled and held" so it will play it's whole duration at this amplitude - no matter if the amplitude is changed while the grain plays. So if I write some capytalk to randomise the amplitude I've got what I want!... I think..?

Maybe a dedicated field would be more convenient?
answered Nov 28, 2020 by andreas-frostholm (Practitioner) (390 points)
This is a bit twisted, but if you were to peel off just the left (or right) channel output using a Channeller, then you could set Pan to 0.5 and use !PanJitter to randomize the amplitude of each grain.

Otherwise, your best bet is to use something like this in the Amplitude field:
!Amp * (1 + (!Random1000 * !AmpJitter))