Effect of Duration upon Detection with Gated and Continuous Noise and Signal
Ann Tucker, Rand B. Evans, Lloyd A. Jeffress · The Journal of the Acoustical Society of America · 1966
A 2AFC procedure was used to study the effect of duration on signal detectability under two conditions: gated noise and signal, and continuous noise and gated signal. The durations employed were 10, 20, 50, 100, 200, and 500 msec, with (2E/N0)12 held constant. Each observed performed under both conditions. In the gated noise-and-signal condition, the data show a higher d′ at short durations than they do for a continuous noise. At long durations, the d′s are about equal. [Work supported through a contract with the U. S. Navy Bureau of Ships and a grant from the National Aeronautics and Space Administration.]