The purpose of this study was to determine the accuracy and reliability of the 3M Viewer in measuring fundamental vocal frequency and to suggest a method of incorporating the 3M Viewer into the clinical measurement of pitch. A total of forty normal speaking persons served as subjects. Recorded sustained terminal vowel segments were obtained from each subject following procedures outlined by Fairbanks and Wilson. The terminal vowel segments were then analyzed utilizing two electronic systems for extracting fundamental frequency (electronic band‐pass filters and digital frequency counter; Kay Elemetrics Sonograph), and 3M Viewer. Measurements made with the 3M Viewer by three observers were submitted to a linear regression analysis. The fundamental vocal frequency estimates from each of the three methods of fundamental frequency determination were submitted to an analysis of variance. Results suggest that the three estimates with the 3M Viewer are not significantly different from one another and that the 3M Viewer method of estimating fundamental vocal frequency is at least as accurate as the other two methods employed in this study.