Decibel Volume Meter!

Decibel Volume Meter provides a simple way to measure audio volumes in your environment. The app shows the approximate dB (decibel) level, also known as Sound Pressure Level (SPL).This particular decibel meter sports a digital light display and internal/external mic calibration settings. An approximate guide to decibel level safety:150-160 = Eardrum rupture140 = Aircraft carrier deck.130 = Jet take-off (100 meters), gun blast at close range.120 = Human pain threshold, loud rock concert.110 = Serious hearing damage if sustained for more than 1 hour.100 = Serious hearing damage if sustained for more than 8 hours.90 = Likely hearing damage if sustained for more than 8 hours.80 = Potential but unlikely hearing damage if sustained for more than 8 hours.70 = Just annoying, but probably safe.60 = Typical conversational volume.50 = A quiet, library conversation.40 = A whisper.30 = Barely audible sound.20 = Threshold of human hearing.