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Keywords: DECIBELS
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Journal Articles
The Institution of Civil Engineers Engineering Division Papers (1945) 3 (13): 1–51.
Published: 01 January 1945
... FLEMING A N D BLLEN ON MODERNTHEORY SOUND AND UNITSOF MEASUREMENT. Intensity: the decibel.-The sensation of sound is produced by small alternating pressure-variations in the air, which are propagated as a wave motion with a velocity of about 1,130 feet per second. The frequency of alternation may range...
