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UK Government Environmental Noise Regulations
Aircraft Noise indicators • LAeq,16h • Lday • Levening.
Industrial Noise and Port Noise indicators • LAeq,16h • Lday • Levening.
Railway Noise indicators • LAeq,6h • LAeq,16h • LAeq,18h • Lday • Levening.
Road Traffic Noise indicators • LA10,18h • LAeq,16h • Lday • Levening.
See also • coupled modes
See also • natural frequency
Under-range, the input to the sound level meter is too low for the current measurement range.
Under-range %, percentage of time that an under range occurred