vestigation. Numerous later experiments, more accurate, but notespecially directed to this point, have verified the above generalstatement quite conclusively. The duration of audibility is nearly independent of the position ofthe source. — The observer remaining at the point marked 0 in the diagram… … Station 1 . . 2 . . 3 .. 4 . . 5 .. 6 .. Duration ,. 3.90 . 4.00 . 3.90 . 3.98 . 3.95 . 3.96 Fig. 3. Lecture-room, Jefferson PhysicalLaboratory: position of observer at 0;positions of air reservoir and organ pipe1-6. The efficiency of an absorbent inreducing the duration of the residualsound is,…
Architectural acoustics
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