NOTE 1 – The Sabine reverberation-time equation is:

${\displaystyle T=\frac{\left(24\text{ln}\text{10}\right)V}{cA}=\frac{\mathrm{55,3}}{cA}V}$

where:
T is the reverberation time, in seconds
V is the volume of the room, in cubic metres
c is the speed of sound in the air contained in the room, in metres per second
A is the sum of all Sabine absorptions in the room, in decibel metre-squared.

NOTE 2 – The unit of Sabine absorption is the decibel metre-squared, sometimes known as the metric sabin.