Accession Number : AD0735534

Title :   Zero-Crossing Measurements for Analysis and Recognition of Speech Sounds,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) RADIO AND ELECTRICAL ENGINEERING DIV

Personal Author(s) : Ito,Mabo Robert ; Donaldson,Robert W.

Report Date : 16 FEB 1971

Pagination or Media Count : 8

Abstract : Existing mathematical relations between the power spectral density and the mean zero-crossing rate of an ergodic random process are used to derive relations between spectral measurements and mean zero-crossing rates of a speech signal and its derivatives. Of particular significance is the equation relating zero-crossing rates to the formant parameters of vowels and vowel-like sounds. Reasonably close agreement between measured zero-crossing rates and those calculated from spectral measurements were observed for virtually all phonemes in a variety of contextual environments. (Author)

Descriptors :   (*SPEECH RECOGNITION, SPECTRUM SIGNATURES), CORRELATION TECHNIQUES, MATHEMATICAL ANALYSIS, PHONETICS, MEASUREMENT, CANADA

Subject Categories : Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE