Abstract
Laboratory measurements of the improvement of partition airborne-sound transmission loss in the presence of sound-absorptive partition facings are presented. For a double-leaf partition of 1/2-in.-thick gypsum board on 2×4-in. studs, the application of such facings has led to improvements in transmission loss in excess of 10 dB in the 1/3-octave bands above 1 kHz. Corresponding, but smaller, improvements have been measured at lower frequencies.
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