A single-number rating of sound transmission class (STC) was
determined based on TL measurements. The results showed that sound
TL and STC values of medium-density particleboard (0.8 g/cm3) were
better than low-density (0.5 g/cm3) board. However, low-density
particleboard performed well as sound absorber panels. Generally, the
boards absorbed sound at low (< 500 Hz) and high frequency ranges (>
1000 Hz) and reflected sound at middle frequencies