Independent work time
Set a low threshold while students work alone. The flash reminds them so you do not have to.
A Classroom Noise Meter Your Students Can See
Let the screen do the shushing. This classroom noise meter listens through your computer's microphone, shows the volume in the room, and flashes when the class goes past the level you set.
Open in full classroom screen
Free, no sign-up. Add more widgets alongside it.
How to set up the classroom noise meter
- 1
Press Start and allow microphone access when your browser asks.
- 2
Set the threshold to the loudest level you are happy with, then adjust the sensitivity to suit your room.
- 3
Choose a bar, a gauge or a face. Younger classes usually respond best to the face.
- 4
Leave it running. It flashes when the room gets too loud (add an alarm if you like) and gives a quiet point for every 10 seconds of quiet.
What it does
Private by design
Sound is analysed in your browser as it comes in. Nothing is recorded and nothing is uploaded.
Your room, your limit
Adjust the threshold and sensitivity so partner talk is fine but shouting across the room is not.
Bar, gauge or face
Pick the display that suits your class, from a simple bar to a face that changes as the noise rises.
Quiet points
Every 10 seconds of quiet earns a point, so students watch quiet time add up instead of only hearing about the noise.
Ways teachers use it
Group work and stations
Raise the threshold for table talk. Groups can see when they are getting too loud and bring it down themselves.
Silent reading
Start the meter at the beginning of reading time and let quiet points build toward a reward you agree on as a class.
Frequently asked questions
No. The audio is analysed locally in your browser and is never recorded, saved or uploaded. Only the volume level appears on screen.
The noise meter needs the microphone to measure how loud the room is. The sound stays on your device and is never sent anywhere.
Yes. The meter listens through the microphone of the computer running the page, so place that laptop where it can hear the room, then show the screen on your projector, smartboard or TV.
Yes. ClassroomScreen's noise meter is free and needs no account.
More free classroom tools
Random group generatorEven random groups from your class list, with keep-apart pairs.Spin the wheelA colourful wheel for names, brain breaks and rewards.Visual scheduleLesson steps with a countdown each, so everyone knows what is next.Online stopwatchCount up with laps, split times and tenths of a second.