Sound Pressure Level, Power Level, Noisiness and Perceived Noise Level of some commonly used Generators in Pankshin Metropolis of Plateau State, Nigeria

Abstract

In this work, sound pressure levels of some generators in Pankshin town of Plateau State, Nigeria were measured. The sound power levels, noisiness, perceived noise levels of generators and people’s attitude towards the noise were obtained. The sound pressure levels of the different generators were carried out using sound level meter type SL 4010 EUROLAB. The measured sound pressure levels range between 76dBA and 98dBA. The sound power levels range between 87dBA and 109dBA. The values of noisiness were in the range of 14noy and 60noy.The perceived noise levels (PNdB) were in the range of 78dBA to 99dBA. The generator sound was rated to range between moderately noisy and noisy whereas the annoyance rating ranges between slight annoyance and very much annoyance. The correlation coefficient for the generator noise and the noise rating was ?₁=0.589 whereas the correlation coefficient for generator noise sound pressure levels and annoyance rating by respondents was ?₁=0.729, both implying that the higher the noise level, the higher the noise rating and the higher the annoyance.

Keywords: Sound pressure level, sound power level, noisiness, perceived noise level, annoyance.