Date of Award
Fall 1975
Document Type
Thesis - Restricted
Degree Name
Master of Science (MS)
Department
Electrical and Computer Engineering
First Advisor
Niederjohn, Russell J.
Second Advisor
Wu, S. H.
Third Advisor
Heinen, James A.
Abstract
A simulation analysis is described which Models the ten English vowels and determines features tor each of tour zero-crossing analysis techniques. In addition, a study is made of the applicability of these techniques to frequency discrimination among sine waves of various frequencies. The comparative analyses indicate the ability of the zero-crossing analysis techniques to discriminate the vowels and sine waves in both a noise-tree and Gaussian white noise environment. One of the four techniques, the h-method, appears to have the most desirable signal discrimination characteristics. The highest correct recognition rate was obtained for h-method feature sets, for realistic S/N ratios in both the sine wave and vowel analyses. It can sustain approximately 5 to 10 dB more noise than the other three techniques in the discrimination of the vowels, based upon a 90% correct recognition rate.
Recommended Citation
Castelaz, Patrick F., "A Comparative Study of Zero-Crossing Analysis Techniques Applied to Vowel Recognition" (1975). Master's Theses (1922-2009) Access restricted to Marquette Campus. 4010.
https://epublications.marquette.edu/theses/4010