Measurements on the edge-effect in reverberation rooms
article
For four sound absorbing materials the absorption coefficient αE has been measured as a function of the relative edge-length E, i.e. the ratio of the length of the free edges to the surface area of the sample. αE and E show a linear relationship. Extrapolation to E = 0 yields α∞ for an infinitely large sample. There is a close agreement between this value of α∞ and the absorption coefficient for statistical incidence derived from measurements in the standing wave tube, assuming the material to be locally reacting.
TNO Identifier
267668
Source
Acustica, 18(4), pp. 207-212.
Pages
207-212
Files
To receive the publication files, please send an e-mail request to TNO Repository.