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Real-zeros in pitch detection

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3 Author(s)
Habib, M. ; University of Delaware, Newark, Delaware ; Robinson, D. ; Sincoskie, W.D.

The real-zero-crossings of a speech signal are developed as the basis for estimating the pitch period of voiced speech. The speech signal is pre-processed by a small, special-purpose system which establishes thresholds for rejection of silent periods and produces measurements of the time interval between real-zeros of the signal. These measurements allow a reduction of computational complexity which permits an autocorrelation estimate of pitch and voiced-unvoiced decisions to be made in near real-time using a mini-computer. The pitch estimates are shown to be robust.

Published in:

Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '78.  (Volume:3 )

Date of Conference:

Apr 1978