DocumentCode :
1084594
Title :
Signal-to-noise ratio as a predictor of speech transmission quality
Author :
Sen, Tapas K. ; Carroll, J. Douglas
Author_Institution :
American Telephone and Telegraph Company, New York, N.Y
Volume :
21
Issue :
4
fYear :
1973
fDate :
8/1/1973 12:00:00 AM
Firstpage :
384
Lastpage :
387
Abstract :
Signal-to-noise ratio expressed in decibels may be generalized to the form 
, where S and N are, respectively, signal and noise values expressed in power units. In the usual definition of signal-to-noise ratio, the exponents a and b both assume values of +1, that is, the ratio a/b = 1. This study was designed to examine the optimum value of a/b as a predictor of speech transmission quality using two sets of speech transmission quality data. Results of factor analysis, multiple regression analyses, and canonical correlation analyses showed that values of a/b greater than one were better predictors of transmission quality than a/b = 1.
, where S and N are, respectively, signal and noise values expressed in power units. In the usual definition of signal-to-noise ratio, the exponents a and b both assume values of +1, that is, the ratio a/b = 1. This study was designed to examine the optimum value of a/b as a predictor of speech transmission quality using two sets of speech transmission quality data. Results of factor analysis, multiple regression analyses, and canonical correlation analyses showed that values of a/b greater than one were better predictors of transmission quality than a/b = 1.Keywords :
Acoustic noise; Crosstalk; Niobium; Noise level; Propagation losses; Signal to noise ratio; Speech enhancement; Telephony; Testing; White noise;
fLanguage :
English
Journal_Title :
Audio and Electroacoustics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9278
Type :
jour
DOI :
10.1109/TAU.1973.1162486
Filename :
1162486
Link To Document :
