SYMPOSIA PAPER Published: 01 January 1968



Sound is the perception by humans of vibrations in some physical medium, usually air. These physical vibrations of the air are evidenced by alternating rarefractions and compressions. Man's primary sense organ for the sound stimulus is the ear (Fig. 1). The external ear consists of the pinna or auricle. From this a canal, the auditory meatus, leads into the skull. This canal terminates at the eardrum, or tympanic membrane. A small muscle, the tensor tympani, regulates the tension of the tympanic membrane.

Author Information

Silbiger, HR
Bell Telephone Laboratories, Inc., Holmdel, N. J.
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E18
Pages: 24–29
DOI: 10.1520/STP34661S
ISBN-EB: 978-0-8031-4572-6
ISBN-13: 978-0-8031-0784-7