Test: RT60 measures the reverberance
within a room.
Related Code: RT60 is soon to be adopted under ADA for classroom acoustic criteria.
General Information: Reverberation Time is the time required,
in seconds, for the average sound pressure level in a room to decrease
60 decibels after a source stops generating sound. This test is
standard on certain projects, such as "THX" movie theaters and various
government buildings. Normally, in the design phase, you must demonstrate
(through calculations) that a space will achieve the stipulated
reverberation time. Often times, measurements are required to verify
Strength: Because RT60 is void of variables, unlike many other tests, it is straightforward and clear-cut.
Weakness: RT60 does not account for problematic and potentially annoying reflections. Often times, there is still a need for expert analysis.