D4000 N

MOTOR COACH INDUSTRIES Pdf Download PDF Report

Interior Noise Test Data Form

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

Date 2002-07-24
Personnel E.D. & T.S.
Temperature (°F) 78
Humidity (%) 58
Wind Direction SE
Wind Speed (MPH) 2
Barometric Pressure (in.Hg) 30.09
Initial Sound Level Meter Calibration checked by S.C.
Interior Ambient Noise Level dB(A) 34.0
Exterior Ambient Noise Level dB(A) 49.3
Microphone Height During Testing(in) 48
Measurement Location Measured Sound Level dB(A)
Driver's Seat 41.2
Front Passenger Seats 40.2
In Line with Front Speaker 38.2
In Line with Middle Speaker 36.5
In Line with Rear Speaker 36.2
Rear Passenger Seats 37.5
Final Sound Level Meter Calibration checked by S.C.
Comments
All readings taken from the center aisle.