dp hook: reconstruct harmonics at k*f0, not k Hz#1021
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Signed-off-by: Leonardo Carreras <leonardo.carreras@eonerc.rwth-aachen.de>
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The inverse dp transformation treated
fharmonics[k]as a frequency in Hz, but it is a list for indexes (k*f0), same than the direct transformation uses. So each component was rebuilt at k Hz instead of k*f0 making the fundamental to be approx 1 Hz.