BeatStatistics
Extension
ExtensionExtracts statistics on a beat histogram
Description
A beat histogram is formed using a perceptual onset detection frontend, then leaky integrators for each of 100 periodicities. On the ensuing histogram, statistics are taken.
Class Methods
.kr
Operate feature extraction at control rate
Arguments:
| fft |
Output of FFT UGen |
Returns:
[0] entropy of beat histogram
[1] ratio of the largest to the second largest entries in the beat histogram
[2] diversity (Simpson's D measure) of beat histogram
[3] metricity (consistency of high energy histogram entries to integer multiples or divisors of strongest entry)
Examples
helpfile source: source/SCMIRUGens/sc/HelpSource/Classes/BeatStatistics.schelp
link::sc3-plugins/Classes/BeatStatistics::
link::sc3-plugins/Classes/BeatStatistics::