How can I reduce the computation time in the evaluation of cross-correlation between spectrograms with size 272x18209

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sing 2016-7-26

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编辑： sing 2016-7-26

The code used for compute the cross-correlation is the following. Unfortunately I cannot use xcorr2 built-in matlab func because it doesn't exactly the same operation.

Thanks!!

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How can I reduce the computation time in the evaluation of cross-correlation between spectrograms with size 272x18209

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