Intelligibility As Related To The Path Of Airborne Side-Tone

Abstract

Subjects (720) in 12 panels of 15 experimental subjects each participated for tests of the problem of intelligibility as related to the path of airborne side-tone in a corridor 84 ft. long, 100 in, high and 84 in. wide. (1) Speakers had higher intelligibility scores when wearing ear defenders. (2) Speakers increased intelligibility when the open ear faced either a non-reflecting or reflecting surface. (3) Ambient noise decreased the results of (2). Intelligibility scores were attenuated. (4) With one ear facing a concave reflector path of airborne side-tone is important in intelligibility.