Fundamentally it required a single function – cross-correlation – to measure the similarity of two data samples (audio files in this case). And it turns out that Octave provides it in the box.

What Is Cross-Correlation? Cross-correlation is a measurement that tracks the movements of two or more sets of time series data relative to one another. It is used to compare multiple time series ...

W. F. Welsh, On the Reliability of Cross‐Correlation Function LagDeterminations in ActiveGalactic Nuclei, Publications of the Astronomical Society of the Pacific, Vol. 111, No. 765 (November 1999), pp ...

Notably, a series of investigations have employed exact field-theoretical methods to derive analytic expressions for one- and two-point correlation functions in systems at phase coexistence.

We use this property to analyse the cross-correlation coefficients of a sample of properties. Our results suggest that there is positive skewness in the serial cross-correlations. This is consistent ...