Page 239 - Master Handbook of Acoustics
P. 239
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This would put (0.49)(340) = 167 ft on the ceiling, (0.3)(340) = 102 ft distributed between the
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east and west walls, and (0.21)(340) = 71 ft distributed between the north and south walls. This
recommendation should provide the desired results, but some experimentation, and critical
listening, should be included in any such project to account for other variables. For example,
different placements of absorptive materials in a room will affect the amount of absorption they
provide.