Abstract
Two sets of marupá wood samples (Simarouba amara Aubl.) were submitted to the following treatments: kiln drying, at 70o C and 80o C of temperatures and of up to 52 hours of drying time; and 47 days of air drying. The acoustic properties were evaluated by means of applying forced vibration to the samples in order to determine the natural frequency of vibration and the logarithmic decrement. ANOVA tests performed showed no statistical differences between the two treatments, suggesting that the acoustic properties studied were not substantially affected by conventional kiln drying.
Key words:
acoustic; drying; marupa