How do we calculate noise pollution?

            Noise calculation refers to the process of calculating the level of noise emission using the metric dB (A). Noise emission, as we know, is created by sources of various types f that emit unwanted noise into the environment.

            There are a number of different national and international standards that have been defined over time to calculate noise. The quality of the results, however, depends on the quality of the acoustic data provided, and the capability of the noise calculation engine.

            As mentioned earlier, decibel is the main unit to measure the intensity or loudness of sounds. But it can also be measured using its pitch, which is the frequency of sound vibrations per second.

            Usually, sound is recorded with a microphone. But a sound level metre uses a sound sensor. They work like microphones, but with more accuracy.