Sontext Acoustic panels are designed to absorb sound waves across a range of frequencies. Acoustic panels are placed on the wall or ceiling to absorb the sound striking their surface. The type of acoustic panel can also have an impact on the result. For example, perforated timber panels tend to have better performance at low frequencies, compared to fabric covered acoustic panels which perform better at higher frequencies. The most important issues in choosing an acoustic panel are the type of finish, the quantity or surface area to be covered and the thickness of the acoustic insulation. The calculation of area in most instances need to be done by an Acoustic Consultant.