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

Personal Author(s):

• Ito,Mabo Robert
• Donaldson,Robert W.

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

Descriptors:

• (*SPEECH RECOGNITION
• SPECTRUM SIGNATURES)
• CORRELATION TECHNIQUES
• MATHEMATICAL ANALYSIS
• PHONETICS
• MEASUREMENT
• CANADA

Subject Categories:

• Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE