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Interior Noise Test Data Form

Test Condition 1: 80 dB(A) Stationary White Noise

Date 1991-01-29
Personnel S.M.
Temperature (°F) 45
Humidity (%) 52
Wind Direction SSW
Wind Speed (MPH) 3
Barometric Pressure (in.Hg)
Initial Sound Level Meter Calibration checked by S.M.
Interior Ambient Noise Level dB(A) 49.8
Exterior Ambient Noise Level dB(A) 45.0
Microphone Height During Testing(in) 60
Measurement Location Measured Sound Level dB(A)
Driver's Seat 54.6
Front Passenger Seats 54.1
In Line with Front Speaker 52.8
In Line with Middle Speaker 54.0
In Line with Rear Speaker 55.0
Rear Passenger Seats 51.1
Final Sound Level Meter Calibration checked by S.M.
Used sindscreen. All readings taken from center aisle 45" from floor. (No ballast loaded)