Measurement and use of bulk acoustical properties of sound-absorbing materials

A. F. Seybert, Z. Tao, D. W. Herrin

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

The two-source method was used to measure the bulk properties (complex characteristic impedance and complex wave number) of sound-absorbing materials, and results were compared to those obtained with the more commonly used two-cavity method. The results indicated that the two-source method is superior to the two-cavity method for materials having low absorption. Several applications using bulk properties are then presented. These include: (1) predicting the absorptive properties of an arbitrary thickness absorbing material or (2) layered material and (3) using bulk properties for a multi-domain boundary element analysis.

Original languageEnglish
Pages3373-3380
Number of pages8
StatePublished - 2003
EventProceedings of the Tenth International Congress on Sound and Vibration - Stockholm, Sweden
Duration: Jul 7 2003Jul 10 2003

Conference

ConferenceProceedings of the Tenth International Congress on Sound and Vibration
Country/TerritorySweden
CityStockholm
Period7/7/037/10/03

ASJC Scopus subject areas

  • Engineering (all)

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