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Acoustical Properties of Carpet

1955; Acoustical Society of America; Volume: 27; Issue: 6 Linguagem: Inglês

10.1121/1.1908124

1520-9024

Cyril M. Harris,

Noise Effects and Management

The acoustical properties of carpet are of interest in the design of auditoriums and studios, since the absorption which it contributes may be quite significant. However, little data exist on the acoustical properties of carpet and the scanty data available make no distinction among the various types of carpet. This paper describes measurements of the normal absorption coefficient and flow resistance for a wide variety of carpet samples. The normal absorption data were used to investigate which of many variables in carpet construction are important from the standpoint of acoustical absorption. On the basis of these data, certain key samples were selected for chamber test at the National Bureau of Standards for comparison with the tube measurements.