Date of Award
Spring 1984
Document Type
Thesis - Restricted
Degree Name
Master of Science (MS)
Department
Electrical and Computer Engineering
Abstract
Two methods for Z-transform analysis of differentiated, infinite peak clipped speech were tested. First, a polynomial representation of the Z-transform was implemented and its sound recognition and speech compression capabilities tested. Second, a study was made of the characteristics of the magnitude of the Z-transform computed at N evenly spaced points on the unit circle. By definition this is the magnitude of the discrete Fourier transform, which can be evaluated easily with the fast Fourier transforms available. The success of this FFT analysis led to the development and testing of an FFT based zero-crossing segment vocoder. The test results of the polynomial format and the magnitude format analysis methods on zero-crossing speech, and the performance of the FFT segment vocoder are presented in this thesis.
Recommended Citation
Debold, Fred A., "Z-transform Analysis of Zero-Crossing Speech" (1984). Master's Theses (1922-2009) Access restricted to Marquette Campus. 4548.
https://epublications.marquette.edu/theses/4548