102-D3

MOTOR COACH INDUSTRIES Pdf Download PDF Report

Interior Noise Test Data Form

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

Date 1995-01-17
Personnel B.L. & S.C.
Temperature (°F) 39
Humidity (%) 75
Wind Direction N
Wind Speed (MPH) 4
Barometric Pressure (in.Hg) 30.06
Initial Sound Level Meter Calibration checked by B.L.
Interior Ambient Noise Level dB(A) 34.0
Exterior Ambient Noise Level dB(A) 51.8
Microphone Height During Testing(in) 45
Measurement Location Measured Sound Level dB(A)
Driver's Seat 43.2
Front Passenger Seats 42.1
In Line with Front Speaker 41.2
In Line with Middle Speaker 37.5
In Line with Rear Speaker 36.6
Rear Passenger Seats 36.5
Final Sound Level Meter Calibration checked by B.L.
Comments
All reading taken in the center aisle.