Thursday, October 3, 1985 3:30 p.m.
David A. Nelson
Tracoustics Acoustic Systems
The speaker has recently descended from the fog-shrouded mountain citadels of theoretical acoustics to the arid plain of nuts and bolts, brute force “acoustical engineering.” The tension between these two extremes is exemplified in the speaker’s attempts to provide a method, based on SEA, for predicting the transmission loss of as-yet unbuilt sound isolating panels. In this talk, basic explanation of SEA is followed by a rather sobering comparison of the prediction obtained with real world measurements. Several types of panel materials and structures (single wall, double wall, double wall with absorption, etc.) are considered.