San Francisco : Architect and Engineer, Inc · leaf 438
oticed by the reader howmuch better hearing conditions are with amaximum audience than when a house isbut sparsely filled. Table I gives the average value of theabsorption per auditor seated as 4.7 units.This figure was determined by Sabine andhas been generally adopted for acousticalanalysis work.… … 1597 FIG. 5 AflCHlTECTAND ENGINEER. July, 1930 sorption added to the room by increasingaudience, it is necessary to deduct the ab-sorption already computed for the chairs.Consequently, each auditor would add 4.7—.24 or 4.46 units by his presence. It is customary to compute reverberationperiods for…
Architecture · Building
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