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Noise traffic light

The classroom volume traffic light.

Microphone off

Microphone levels are analyzed only on your device; nothing is recorded, stored, or transmitted.

What the tool does

The free Noise Traffic Light displays classroom noise levels as a traffic light on the projector, with modes for individual, pair and group work. It automatically adjusts to the room's ambient noise level. The microphone level is analyzed locally in the browser only; nothing is recorded or transmitted.

How it works

  1. 1

    Start the microphone and allow access.

  2. 2

    Choose a working format: individual, pair or group work.

  3. 3

    Turn on the bell for red if needed.

  4. 4

    Switch to full-screen projector mode and show the traffic light.

AI is working

Differentiated worksheets tailored to your lessons

TeachPie creates materials for you at three levels in two minutes. For any topic, for your class.

Try it for free

Content stays in your browser. We only count anonymously how often a tool is used.