Application of Android Smartphone for Measuring Traffic Noise

In this paper, we investigate the application of android smart phone for measuring traffic noise. The word "noise" is derived from the Latin word "nausea" meaning seasickness. Noise, can be said to be as unwanted serious threat or excessive sound, is an undesirable byproduct of urbanization. This application can be meant to be used instead of conventional noise measurement instrument. Depending upon the filter used, differences in measurements may occur. Devices employing AGC (automatic gain control) will have significant measurement errors. For the present study, this device is used for the collection of data instead of precision sound level meter. The word “sound� and “noise� are two different parameters its not similar at all. When the limit of sound level reached above 70db, it comes in the category of noise. Above 80db it proves to be dangerous to human health including hearing loss and it is said to be noise which should be avoided. The present piece of work highlights the possibility of the prediction of the optimum condition for the analysis of traffic noise. This model is obtained by collecting the experimental data of roadways of different locations recorded by android based software which is pre-calibrated with digital sound meter instrument. By doing so, it reports the accuracy of Smartphone sound measurement applications (apps) and whether they can be appropriately employed for occupational noise measurements.