
You can choose this command after selecting two objects with cepstral coefficients (two MFCC's or LFCC's). With this command you perform dynamic time warping.
First we calculate the distance matrix D of all the distances between the cepstral frames of the two objects. This matrix has n_{1} rows, the number of frames in the first object, and n_{2} columns, the number of frames in the second object.
The elements of D are the distances d_{ij} between frame i (from the first object) and frame j (from the second one). The d_{ij} are composed of three parts:
d_{ij} = w_{1} · d_{1} + w_{2} · d_{2} + w_{3} · d_{3}, 
where w_{1}, w_{2} and w_{3} are usersupplied weights and
After calculation of all the frame distances d_{ij}, we find the optimal path through the distance matrix D with a Viterbialgorithm.
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