3400 Liberty

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2015-03-13
Personnel : S.R., E.D. & M.H.
Temperature (°F) : 35 Humidity (%) : 40
Wind Speed (mph) : Calm Wind Direction : Calm
Barometric Pressure (in.Hg) : 30.5
Verify that microphone height is 4 feet, wind speed is less than 12 mpg and ambient temperature is between 30 F and 90 F: true checked by E.D.
Initial Sound Level Meter Calibration: true checked by
Exterior Ambient Noise Level dB(A): 44.4

Accelerating from Constant Speed
Curb (Right) Side
Accelerating from Constant Speed
Street (Left) Side
Run # Measured Noise Level dB(A) Run # Measured Noise Level dB(A)
1 76.3 1 76.2
2 76.6 2 76.2
3 76.3 3 76.0
4 78.0 4 76.5
5 77.9 5 77.8
Average of two highest actual noise levels = 78.0 dB(A) Average of two highest actual noise levels = 77.2 dB(A)