Free Classroom Tool
Classroom Noise Meter
A live volume monitor that fills up and turns red when the room gets too loud — and the audio never leaves your device.
Turn down the volume, visually
A noise meter on the board is a calm, wordless way to manage the room — students watch the dial and self-correct before you have to say a thing. Set your own "too loud" threshold, go full screen, and let it run. The microphone is used only to read the live level; no audio is ever recorded or uploaded.
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Noise meter FAQ
How does the noise meter work?
It reads your mic to measure the room's volume live and fills a big dial that turns red when it's too loud. Nothing is recorded or uploaded.
Do I need to allow the microphone?
Yes — click Start and allow it. The mic is used only to measure the level in real time.
Can I set how loud is "too loud"?
Yes — drag the threshold slider to match your room.
Is my classroom audio recorded?
No — only the live level is read to move the dial. No audio is saved or sent.