The UGen records all trigger (onset) events and their times within its window of operation. Basic statistics are calculated over the onsets and inter-onset-intervals.
Operate feature extraction at control rate
Triggers at the control rate input are stored with their associated time of activation
Size of operating window (from now into the past) in seconds. Any onset triggers within this time are taken into account
Not used at present, re-calculates every block
(describe returnvalue here)  Density of onsets (number of triggers) in the window  Mean of IOIs (in seconds)  Standard deviation of IOIs