Forward and reverse transmission loss measurements

Auteurs-es

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

Mots-clés :

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

Résumé

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.

Fichiers supplémentaires

Publié-e

2004-09-01

Comment citer

1.
Warnock A. Forward and reverse transmission loss measurements. Canadian Acoustics [Internet]. 1 sept. 2004 [cité 7 mai 2026];32(3):168-9. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1681

Numéro

Vol. 32 No. 3 (2004)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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