Statistical Measurements on Conversational Speech

Abstract

Using apparatus designed to collect a large number of data in a short time, the following measurements have been made: peak and r.m.s. pressures in one‐eighth‐second intervals, and in various bands of frequencies up to 12,000 cycles per second, from the voices of six men and five women; comparison of r.m.s. pressures in one‐eighth‐ and one‐fourth‐second intervals, from a single male voice; and distribution of the instantaneous pressures in whole speech, from a single voice. Derived from these data are peak factors in one‐eighth‐second intervals, and frequency distribution of speech energy in long intervals. Both the absolute value and the distribution of energy are found somewhat different from previously published results.