Type of Document	Master's Thesis
Author	Mitchell, Bruce Wayne
URN	etd-03132013-040018
Title	Determination of acoustic ray paths in enclosed spaces
Degree	Master of Science
Department	Mechanical Engineering
Advisory Committee	Advisor Name Title Hurst, Charles J. Committee Chair Mitchell, Larry D. Committee Member Robertshaw, Harry H. Committee Member
Keywords	ray tracing plots
Date of Defense	1975-02-05
Availability	unrestricted
Abstract The results of the theoretical and experimental investigations allow some conclusions to be drawn: 1. The program can handle irregular rooms including room boundaries with slanted surfaces. 2. The ray tracing plots can indicate areas where absorption material may be added to reduce sound levels at a given receiver location. 3. The sound pressure level predictive capabilities of the program are promising and justify further work using the methods determined in this work. Recommendations for the improvement of the program include investigating different intensity calculations not based on a point sound source. Directivity of the source and diffraction effects in irregular rooms need to be incorporated into the program. The program should also be extended to handle barriers within a room. Investigations into the effects of air absorption should also be considered.
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