You will need to run a series of calculations for credit compliance. The architect should review the ANSI Reverberation Time (RT) requirements and calculations and decide whether to perform calculations or hire an acoustics consultant to do so. The RT calculations include total interior room surface area, room volume, sound absorption coefficient for each surface material, and total area for each surface material. These calculations are run for three frequencies (500 Hz, 1000 Hz, and 2000 Hz) and with the design needing to meet the requirements at each frequency. All materials in the room must be included in the RT calculations, including the ceiling, walls, doors, windows, significant furniture and the floor. The absorption of people in the room is not considered.
