Title :
Real-zeros in pitch detection
Author :
Habib, M.K. ; Robinson, D.H. ; Sincoskie, W.D.
Author_Institution :
University of Delaware, Newark, Delaware
Abstract :
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.
Keywords :
Autocorrelation; Detectors; Frequency measurement; Instruction sets; Signal analysis; Signal detection; Signal processing; Silicon compounds; Speech; Time measurement;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '78.
DOI :
10.1109/ICASSP.1978.1170399