Keep the room quiet and shy animals will wander in. Get too loud and they all hide.
Your browser will ask to use the microphone. Audio is measured on this computer and never recorded or sent anywhere.
Put this on the projector. While the room stays below the line on the meter, animals arrive. Too loud for a moment and they all hide, then return after a few quiet seconds.
Use Calibrate once the room is settled. Today's guest animal changes every school day.
Audio is measured on this computer and never recorded or sent anywhere. This is a visual guide for the room, not a calibrated sound-level meter.
Shortcuts: P pause, R reset, S settings, F fullscreen, 1/2/3 noise mode, hold N to test noise.