Review of literature made to determine frequency of sound of given source strength that is loudest at various distances from source; sounds in frequency range between 500 and 1000 cycles are found to be loudest at distances greater than 1 mi from source; at shorter distances higher frequencies will be loudest.
Effect of distance on airplane noise
Nat Advisory Committee Aeronautics -- Tech Note
1947
14 pages
5 Supp plates, Bibliography
Aufsatz (Zeitschrift)
Englisch
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Effect of distance on airplane noise
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