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A modified multi-feature voiced/unvoiced speech classification method is presented. The method is based on statistical analysis of wavelet-based frequency distribution of the average energy, zero-crossing rate, and average energy of short-time segments of the speech signal. The method first classifies the input speech into voiced, unvoiced and unce...
There are many traditional pitch detection methods, but most of them can’t perform perfectly for different speakers, applications and environmental conditions. For this reason, a pitch detection method based on pre-filtering, wavelet transform and local maxima selection is proposed. Firstly, the speech signals are pre-filtered. Secondly, the speech...