Effects of carrier frequency and background noise on the detection of mixed modulation

摘要: This article is concerned with the mechanisms underlying detection of amplitude modulation (AM), frequency (FM), and mixed (MM), i.e., simultaneously occurring AM FM. In a previous study [B. C. J. Moore A. Sek, Acoust. Soc. Am. 92, 3119–3131 (1992)], psychometric functions were measured for alone FM alone, using 10‐Hz rate 1‐kHz carrier frequency. Detectability was then combined FM, depths selected so that each type would be equally detectable if presented alone. The detectability better than predicted two types coded completely independently. Significant effects relative modulator phase found when relatively high, but these not correctly by either excitation‐pattern models considered. first experiment reported here similar to earlier experiment, ...