You can choose this command after selecting 2 objects with cepstral coefficients (two MFCC's or LFCC's). With this command you perform dynamic time warping.
Algorithm
First we calculate distances between cepstral coefficients:

The distance between frame i (from me) and j (from thee) is:

wc · d1 + wle · d2 + wr · d3,

where wc, wle & wr are usersupplied weights and

d1 = ∑ (k=1..nCoefficients; (c_{ik}  c_{jk})^{2})

d2 = (c_{i0}  c_{j0})^{2}

d3 = ∑ (k=1..nCoefficients; (r_{ik}  r_{jk})^{2}), with

r_{ik} the regression coefficient of the cepstral coefficients from the frames within a time span of dtr seconds. c_{ij} is jth cepstral coefficient in frame i.
Next we find the optimum path through the distance matrix with a Viterbialgorithm.
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© djmw, September 18, 1996