Speech fundamental frequency estimation using the Alternate Comb
Résumé
Reliable estimation of speech fundamental frequency is crucial in the perspective of speech separation. We show that the gross errors on F 0 measurement occur for particular configurations of the periodic structure to be estimated and the other periodic structure used to achieve this estimation. The error families are characterized by a set of two positive integers. The Alternate Comb method uses this knowledge to cancel most of the erroneous solutions. Its efficiency is assessed by an evaluation using a classical pitch database.
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