2pSA5. Near-field acoustic holography measurements of the acoustic radiation from violins.

Session: Tuesday Afternoon, December 3

Time: 3:30


Author: Lily M. Wang
Location: Graduate Program in Acoust., Penn State, P.O. Box 30, State College, PA 16804
Author: Courtney B. Burroughs
Location: Graduate Program in Acoust., Penn State, P.O. Box 30, State College, PA 16804

Abstract:

As previously described, an open-frame mechanical bowing apparatus has been constructed to excite a violin [L. M. Wang and C. B. Burroughs, J. Acoust. Soc. Am. 99, 2502(A) (1996)]. An array of microphones is mounted to this apparatus on each of the six sides of the frame, boxing the violin source. Complex pressure measurements made in the near field of the violin are then used with a modified near-field acoustic holography (NAH) algorithm. Results characterizing the three-dimensional sound radiation field around a violin using the above setup are presented and discussed. [Work supported by NSF and an AT&T GRPW Grant.]


ASA 132nd meeting - Hawaii, December 1996