Sound Meter Decibel is a free Android app designed to help users determine the level of environmental noise, including acoustic. The app is also known as a sound pressure meter or decibel meter (db meter). With this sound meter and noise detector, users can easily detect too much loud or too quiet sound that may interfere with their hearing.

The application determines the noise level using the microphone built into the phone. However, it is important to note that this instrument is not a professional noise level meter. Most mobile device microphones are tuned to the human voicedB). High-performance microphones are not required for voice calls. Therefore, the maximum value of the sound meter decibel is limited by manufacturers.

Overall, Sound Meter Decibel is a simple app that can be useful for those who need to keep track of environmental noise levels. However, it may not be suitable for professional use due to the limitations of the microphone on mobile devices.