3aAA11. Modes of vibration and directivity of guitars.

Session: Wednesday Morning, May 15

Time: 11:35

Author: Eric T. Watson
Location: Watson Acoustical Consulting, 13114 Creekview Park Dr., Houston, TX 77082
Author: Thomas D. Rossing
Location: Northern Illinois Univ., DeKalb, IL 60115


An acoustic guitar radiates sound primarily from the top plate, the back plate, and through the sound hole, leading to a rather interesting sound field [E. T. Watson and T. D. Rossing, J. Acoust. Soc. Am. Suppl. 1 83, S119 (1988)]. The modes of vibration of the guitar body, including the top plate, the back plate, and the enclosed air, and the radiation patterns that result from exciting these modes in an anechoic room, are described.

from ASA 131st Meeting, Indianapolis, May 1996