Normative data on the speaking fundamental frequency characteristics of young adult males

Abstract: A normative investigation of the speaking fundamental frequency (SFF) and physical size characteristics was carried out on a population of 157 U.S. males. They were found to be somewhat larger than other similar groups. Their mean SFF level was: (1) somewhat lower than those reported for groups studied 25–30 years ago; (2) somewhat higher than those for contemporary groups; and (3) lower than that for a similar group of Polish students.