Sound Meter Decibel のアプリ分析 2月2日

Sound Meter Decibel designed to determine the level of environmental noise, including acoustic. A noise meter is known as a sound pressure meter or db meter. With the help of a sound level meter or sound decibel meter, you can easily detect too much loud or too soft sound to interfere with your hearing. The application detects measure decibels using the phone's built-in microphone. ATTENTION! This instrument is not a professional decibel meter measuring device . Most microphones on mobile devices are tuned to human voice (40-60 dB). Voice calls don't require high-performance microphones. Therefore, the maximum value of the Sound Meter Decibel is LIMITED by manufacturers.