Conical and Sinusoidal Horns as Sound Traps
B. N. Nagarkar, H. C. Dhingra, Robert D. Finch · The Journal of the Acoustical Society of America · 1972
It is shown that the application of Webster's theory to sinusoidal and conical horns leads to the conclusion that such horns, used as receivers and terminating in cusps, should act as sound traps. This result is further discussed in light of three-dimensional conical horn theory. Experimental work to verify the theory is in progress.