Sunday, April 11, 2010

DTW not as sensitive to phone alignment


The above image is an interesting result. It shows the histogram of DTW scores for Jin-Andrew (blue) and Jin-Scott (red). Here we see that indeed the red histogram has higher scores, but not significantly. The mode is shifted by about 1000 and the bins above the mode do have more scores. Regardless, this implies that the orientation (at least for an offset of this small amount) translates into a fixed offset that is much smaller than the overall DTW cost.

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