The
Sabin Formula is named after Wallace C. Sabine, generally accepted
as the Father of Acoustics. The formula allows for quick and easy
calculations to estimate the existing reverberation time (RT) and
to calculate how much additional treatment, using absorption materials,
is required to obtain a lower RT value which is consistent with the
intended use of the space.
Any room or indoor
space possesses some ability to absorb and |
|
dissipate
sound waves/energy. Reverberation time calculations using the Sabin
Formula vary according to the volume of the space and the units of
sound absorption or Sabins in the space. A Sabin is a unit of sound
absorption equivalent to one square foot of material with an absorption
coefficient of 1.00. For example, a 10,000 ft.2 concrete
floor would yield only 150 Sabins of absorption based on the absorption
coefficient for concrete at 500 Hz (.015 x 10,000 =150). |