Frequency considerations in the subjective assessment of sound insulation

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PagesE109 - E-112
SubjectSound transmission & insulation
AbstractSound insulation problems involve two aspects: the physical process of sound transmission through some barrier between source to listener, and the listener's reaction to the sounds that reach him. This paper describes a laboratory study of the subjective aspect of the process. The observer, placed in a controlled ambient sound field, hears a signal typical of what the occupant of an office or dwelling might hear from an adjacent space. The signal reaches him alternatively through each of two electrical networks that simulate the transmission loss characteristics of two walls, and he adjusts the overall attenuation of one network until the two transmitted signals are judged to be equally annoying. The objective of the study is to determine the relative importance of various frequency bands in assessing the performance of a partition. In particular, the results are compared to the objective rating system known as the ASTM Sound Transmission Class (STC).
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number10612
NPARC number20373807
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Record identifier9cc3880c-796a-42df-8a84-4fcad2a3275d
Record created2012-07-23
Record modified2016-05-09
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