standard mode | Rhythm category
- array (vector_real) - the input signal
- array (vector_real) - the input signal with enhanced harmonics
This algorithm implements the 'Enhance Harmonics' step as described in .Given an input autocorrelation signal, two time-stretched versions of it (by factors of 2 and 4) are added to the original.In this way, peaks with an harmonic relation are boosted. For more details check the referenced paper.
-  Percival, G., & Tzanetakis, G. (2014). Streamlined tempo estimation based on autocorrelation and cross-correlation with pulses. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 22(12), 1765–1776.