Noise Pollution Level&Test

This is a tool for calculating noise pollution levels and detecting noise.

***Introduction to use***

-If you are using the noise pollution level calculation function, please enter L10, L50, L90 respectively.Then click on the "Start" button and you will get the answers you need.

-If you are using noise detection, you will be prompted for the first time whether you are allowed to access the microphone, please click "Allow".
Next, place the detector directly at the sound source and automatically detect the sound size. You only need to look at the dial that the pointer ends up pointing to.

Note: L10 is the A sound level whose time or number of occurrences is more than 10% in the measurement time, and so on