• Tips/Considerations
  • Recommended reverberation time is 0.8 to 1 second.
  • Absorptive materials are needed to reduce the reverberation time.
  • If domes or other concave surfaces are desired, they must be treated with absorptive materials to reduce unwanted reflections.
  • Beware of potential noise impact to your space from exterior sources and/or excessive HVAC noise. To help protect your design, the NC level should not exceed 30 to 40. When specifying NC, specify an actual rating, such as NC 35, rather than a range, such as NC 30-35. Although specifying a lower number will ensure minimal background noise, it might be cost prohibitive to achieve. Be realistic about the amount of acceptable noise and the project's budget when specifying an NC level. NC is not a consideration for an outdoor space.
  • The majority of noise concerns can be alleviated through proper space planning. If possible, place noisy equipment and activities in remote areas.

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