In file ../include/EST_track_aux.h:

EST_Track differentiate

(EST_Track &c,   float samp_int=0.0)

Calculate the simple derivative of a track.

Documentation

Calculate the simple derivative of a track. This is given by

The values in the resultant track are spaced midway between the values in the input track, resulting in 1 fewer frames in the track. This is a very local estimation of the derivative of the track at a point in time. A smoother value can be obtained using the delta function.

See Also:

delta

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Copyright University of Edinburgh 1997
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