equivalent absorption area

equivalent absorption area

[i′kwiv·ə·lənt əb′sȯrp·shən ‚er·ē·ə]
(acoustics)
Area of perfectly absorbing surface that will absorb sound energy at the same rate as the given object under the same conditions; the acoustic unit of equivalent absorption is the sabin.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.