RP 141:2020由美国电气电子工程师学会 US-IEEE 发布于 2020-10-02,并于 2020-10-02 实施。
This practice provides measurement methods and recommended maximum levels for indoor background sound pressure levels in theaters and review rooms. The practice is limited to the noise of heating, ventilating, and air conditioning systems, intrusive noise from the projector(s) associated with the theater, and noise from any other mechanical or electrical equipment in the theater building. The prac...
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