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Accession Number:
AD0735534
Title:
Zero-Crossing Measurements for Analysis and Recognition of Speech Sounds,
Descriptive Note:
Corporate Author:
NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) RADIO AND ELECTRICAL ENGINEERING DIV
Report Date:
1971-02-16
Pagination or Media Count:
8.0
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
Distribution Statement:
APPROVED FOR PUBLIC RELEASE