libZPlayDelphi.TBPMDetectionMethod Enumeration

Beat-per-minute detection method.

Pascal

TBPMDetectionMethod = (
  dmPeaks = 0,
  dmAutoCorrelation = 1
);

File

libZPlay

Parameters

Parameters	Description
dmPeaks	Detect BPM using peaks detection algorithm.
dmAutoCorrelation	Detect BPM using autocorrelation algorithm.

Remarks

dmPeaks detection method is using FFT analysis to divide frequency range into subbands. Each subband is analyzed to detect energy peaks and calculate beat. When we have beat value detected in all subbands, most accurate value is selected as songs BPM. This methos is faster, but less accurate.

dmAutoCorrelation detection method is using FFT analysis to divide frequency range into subbands. Each subband is analyzed with autocorrelation to detect beat. When we have beat value detected in all subbands, most accurate value is selected as songs BPM. This method is slower, but more accurate.