Correlation between noise exposure and l-kaz� coefficient for Malaysian army 3-tonne truck drivers

Abstract

Safety, health and comfort for hearing are among ergonomic aspects that are very important in vehicle driving. Noise exposure increases as the size and weight of vehicle increases. This study is conducted to identify sound pressure inside Malaysian Army 3-tonnetruck drivers. A statistical analysis method called Integrated Kurtosis-based Algorithm for Z-notch filter (l-kaz???) is used to determine the sound pressure. Noise exposure is measured using a Duo smart noise monitor which is capable to record raw sound pressure in Pascal unit. The correlation between sound pressure, I_kaz??? coefficient and the different truck speeds was also studied. From the results, noise exposure to Malaysian Army truck drivers could be presented in sound pressure and f-kaz??? coefficient which the value will increase proportional to the truck speed.