A pitch extraction method using a bank of bandpass filter-pairs

Abstract Pitch detection remains one of the most difficult problems in speech analysis. Therefore, to detect pitch contours of speech, we have developed a new method which is quite different from conventional ones. The method utilizes a bank of bandpass filter-pairs; it is a fully continuous method in the time domain. This paper describes the parameter optimization of the filter-pair for a database of enlarged vocabulary and the integration of the filter-pair method by adding a voicing detector. Compared with conventional pitch detection methods, the proposed method produced a low Gross Pitch Error rate.

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