Experimental Studies on Sound Transmission in the Human Ear: III Influence of the Stapedius and Tensor Tympani Muscles

Abstract

An experimental set-up in which an automatic sound level recorder is employed has been used to obtain a graphic representation of the sound conduction in specimens of human temporal bones. The influence of application of various forces to the stapedius and tensor tympani muscles has been investigated with special respect to output to input ratio and the formation of harmonics.