A Review on Noise Monitoring System

Noise pollution is a growing problem in today’s environment. We experience unwanted noise in many places such as roads, markets, schools, and industrial areas. Continuous exposure to high noise levels can cause problems like headache, stress, and disturbance in daily life. Therefore, monitoring noise level has become necessary.In this project, a Noise Monitoring System is developed to observe the surrounding noise level. A sound sensor is used to detect the noise, and the sensor output is given to a microcontroller for processing. The microcontroller continuously checks the noise level and compares it with a predefined limit. When the noise level crosses this limit, the system provides an alert using a visual indicator such as an LED or display.The system is simple in design, low in cost, and easy to operate. It can be used in residential areas, schools, hospitals, and small industries. This project helps in monitoring noise pollution and creates awareness about maintaining a healthy environment.