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Class Noise Meter

Free classroom noise meter for teachers. Uses your microphone to show a live traffic-light noise level on the projector — green for quiet, amber for getting loud, red for too loud. No audio is recorded or stored.

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Free classroom tool
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Good moments to use it

Where class noise meter earns its place

  • Monitor independent work volume without verbal reminders
  • Set a visible noise target during group tasks
  • Support self-regulation in SEND-friendly classrooms

Help

Class Noise Meter FAQ

Practical answers about setup, classroom use and what pupils need to do.

Is audio recorded?

No. The meter analyses volume in real time but does not record, store or transmit any audio.

Can I adjust the sensitivity?

Yes. Calibrate the microphone to match your room size and acoustics.

Does it work on all devices?

Yes. It works on any device with a microphone and browser.

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