Prediction of acoustical characteristics of wooden micro-perforated panels

Sound absorption characteristics of wooden micro-perforated panels are theoretically predicted.Predictions of sound absorption coefficient and impedance are well consistent with the measurement results in impedance tube.The factors affecting the absorption characteristics of such wooden micro-perfor-ated panels are further discussed.And it is especially recommended to use them in auditorium acoustics design due to good performances in both interior decoration and acoustics.