Interactive Reverberation Tool
Interactive Reverberation Tool – calculate and hear the difference
Overview of Reverberation
What is reverberation?
Classroom acousticsClassroom acoustics and ANSI S12.60 [ ANSI S12.60: now available online at no cost ]
ANSI Standard S12.60 for Classroom Acoustics addresses the issues of both reverberation time and background noise and their effect on speech intelligibility by placing maximum permissible levels on each.
Under the new standard, the maximum reverberation time in an unoccupied, furnished classroom with a volume under 10,000 cubic feet is 0.6 seconds, and 0.7 seconds for a classroom between 10,000 and 20,000 cubic feet. The maximum level of background noise allowed in the same classroom is 35 decibels (dBA).
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