An Automatic Pitch-Marking Method using Wavelet Transform

摘要

This paper describes a new automatic pitch-marking method using wavelet transform. this method detects discontinuity in the speech waveform which occurs at the glottal closure instant (GCI). A time domain prosodic mdoification technique requires an appropriate determination of the synthesis pitch-marks. We evaluted the performance of hte newly developed pitch-marking mehtod by using our internal speech databases with an electroglottograph signal. We achieved 96 percent detection accuracy on the performance evalaution. We confirmed that the proposed pitch-marking method is suitable for waveform concatenation-based syntheiss through a listening test using pitch modified speech.