Classroom Noise Meter
A privacy-first classroom noise meter that gives visual feedback for volume without recording audio.
Cost
Free to use
Setup
No account needed
Best for
Smartboards & laptops
Use the tool below
Noise Meter
Adjust if the meter is too slow or too responsive.
How to use this tool
Click "Start Listening" and grant microphone access when prompted. Adjust the sensitivity slider if the meter is too jumpy or too slow. Use the fullscreen button to project the meter on the board so students can monitor their own noise level.
Classroom use cases
- 1Independent work time (whisper volume)
- 2Group collaboration (indoor voices)
- 3Transitions (monitoring excitement levels)
Frequently Asked Questions
Does the classroom noise meter record audio?
No. The app only measures the decibel level and immediately discards the audio data in your browser. Nothing is recorded, saved, or uploaded.
Why does it ask for microphone access?
The tool needs microphone access to detect the volume of sound in the room. This happens entirely locally on your device.
Is audio uploaded?
No, audio is never uploaded or transmitted to any servers. It works completely in your browser.
How accurate is the noise meter?
The noise meter translates raw microphone volume into an arbitrary scale for visual feedback. It is great for relative volume monitoring in a classroom, but it is not a scientifically calibrated decibel meter.
Can I use this on a classroom display?
Yes! Click the fullscreen button (the square icon) to maximize the meter so the whole class can see it clearly.
Keep going
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