What is the Sound Transmission Loss of Acousta-Wal blocks?
It is critically important to remember the difference between sound absorption and sound transmission loss. Sound absorption is a measure of the sound absorbed in the same room in which the sound is generated. Sound transmission is a measure of sound transmitted from one room into an adjacent room. Sound transmission loss is measured in decibels. The sound transmission class of a material is determined by comparing the measured sound transmission loss of the material at various frequencies to the response of the human ear at the same frequencies.
