Comparison of reverberation measurements using Schroeder's impulse method and decay-curve averaging method

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TypeArticle
Journal titleJournal of the Acoustical Society of America
ISSN0001-4966
Volume63
Issue5
Pages14441450; # of pages: 7
Subjectreverberation time; sound absorption; reverberation chambers; Acoustics
AbstractUtilizing a digital acquisition system and minicomputer, two promising techniques for accurate determination of reverberation times have been studied in detail from the viewpoint of standard reverberation room tests. The first is Schroeder's "integrated impulse method," and special attention was given to the question of repeatability and the influence of signal-to-noise ratio on the successful application of the method. The second technique involves taking an ensemble average of a large number of logarithmic decay curves. It was found that, even for nonuniform decays, the average decay curves obtained by the second method compared well with those determined by the Integrated Impulse Method.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-P-792
NRC number16888
2086
NPARC number20374626
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Record identifier35a62e95-3db6-4704-abed-b9cd6a2ce11e
Record created2012-07-23
Record modified2016-05-09
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