Forward and reverse transmission loss measurements

Authors

  • A.C.C. Warnock Inst. for Research in Construction, National Research Council Canada, 1200 Montreal Road, Ottawa, Ont. K1A 0R6, Canada

Keywords:

Approximation theory, Automation, Calibration, Data acquisition, Frequencies, Microphones, Standards, Automated systems, Floor plan, Mean difference, Transmission loss

Abstract

The main methods for measuring sound transmission loss using the two-roo method ASTM E901 and ISO 140?32 are discussed. Changing the direction of a transmission loss test leads to a change in the STC and other ratings generated. The standard test methods 1,2 require measurements in both directions as a means of improving reproducibility for the test methods. The number of microphone position required for a test in a direction can be reduced to avoid doubling the time for testing.

Additional Files

Published

2004-09-01

How to Cite

1.
Warnock A. Forward and reverse transmission loss measurements. Canadian Acoustics [Internet]. 2004 Sep. 1 [cited 2024 Oct. 6];32(3):168-9. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1681

Issue

Vol. 32 No. 3 (2004)

Section

Proceedings of the Acoustics Week in Canada

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