Sound Meter, also known as Sound Pressure Level meter (SPL meter), noise level meter, decibel meter (dB meter), or soundmeter, is a useful app for measuring environmental noise or conducting a sound test. The app uses the microphone on your smartphone or tablet to measure noise levels in decibels (dB). However, the decibel value measured by the app may vary compared to an actual Sound Pressure Level Meter (SPL Meter).

It is important to note that the decibel meter or soundmeter is not as precise as an actual SPL meter, noise level meter, or decibel meter due to most device microphones being aligned to human voice. To fix this, it is recommended to use an actual SPL meter to adjust the decibel error as close as possible before using the app. If you do not own an actual SPL meter, you can adjust the reading value to 20-30dB in a quiet place where sound cannot be heard.

The app features real-time updates on a chart graph, displays minimum (Min), maximum (Max), and average (Avg) decibel values in the recording session, and displays measuring time. A reset button is provided in case you need to reset the measuring, and play and pause buttons are also available. The app can be used for noise tests or sound tests.

The app provides a list of decibel levels for various sounds, ranging from gunshots at 140dB to breathing at 10dB. Exposure to loud noises can be harmful to both physical and mental health, so it is important to avoid such environments. The Sound Meter app can help you measure environmental noise and protect your health and the health of your family.

Overall, Sound Meter is a useful app for measuring environmental noise and conducting sound tests. While it may not be as precise as an actual SPL meter, it can still provide valuable information on noise levels and help protect your health.