Sound Pressure Level Frequency Weightings

Sound Pressure Level Frequency Weightings

In almost all countries, the use of A-frequency-weighting is mandated to be used for the protection of workers against noise-induced hearing loss.

By Acousticator (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

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