A Proposed Loudness-Efficiency Rating for Loud-Speakers and the Determination of System Power Requirements for Enclosures
- 1 March 1948
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE
- Vol. 36 (3) , 315-335
- https://doi.org/10.1109/JRPROC.1948.226221
Abstract
Experimental and computed data relating to the loudness contribution of various ranges of the frequency spectra of speech and music are correlated with the corresponding energy distribution. A relatively simple measurement of sound pressure and a knowledge of certain acoustic radiation phenomena are applied to this correlation to form the basis of a method for predicting the loudness established by loudspeakers in enclosures. A loudness-efficiency rating for loudspeakers is suggested, and its application to sound-system engineering problems is described.Keywords
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