Sound Level Meter Live

A phone microphone is not calibrated and compresses loud sound. The reading is trustworthy in the middle of the scale and reads low above about 100 dB. This is not a class-1 meter and will not serve for a measurement you have to show someone. The instrument uses the phone's microphone and shows the value in dB. • A large number, readable at arm's length. • A chart of the last minutes — you can see it rise or fall. • Minimum, average and maximum per session, reset with one button. • A threshold with sound: an alert when the value goes above it. • A table of everyday equivalents to compare your reading against. • No ads. Under a megabyte. Works without internet. The microphone is used only to measure the sound level. Nothing is recorded, stored or sent. There is a voluntary support button in the instrument. It unlocks nothing and disables nothing: the app works exactly the same without it. The app sends anonymous usage statistics; you can turn this off in settings. Independent development: one person builds and maintains this app. A letter to [email protected] is read by that person, not by a support desk.