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Sonomètre Classe
Grand écran volumétrique codé couleur pour projecteur, alerte bruit soutenu. Affiche niveau relatif, rien n'est enregistré, totalement privé.
🔒 Cet outil fonctionne entièrement dans votre navigateur. Vos fichiers ne sont jamais envoyés sur un serveur.
This needs your microphone
Audio is analysed in the page and never recorded, saved or sent anywhere. Nothing is written to disk and closing the tab ends it completely.
Silent work
0
relative level, 0–100 — not decibels
Stops a single dropped book setting it off.
Only useful if you have a real meter to match.
This is not a sound level meter. The number is a relative level from 0 to 100, useful for comparing "now" against "a minute ago" in one room with one device. It is not decibels and cannot be: a browser gives no access to the microphone's absolute sensitivity, and the operating system may be applying automatic gain that changes as the room changes. For anything involving hearing safety or a noise complaint you need a calibrated meter, not a laptop.
How Sonomètre Classe works
- Open Sonomètre Classe and review the example state before entering your own values.
- Enter or select the information needed for Sonomètre Classe.
- Review the result and adjust the inputs if you want to compare another case.
A large colour-coded volume display for a projector, with a sustained-noise sound alert and one-click fullscreen. Shows a relative level, not decibels. The interactive workspace runs in your browser, so you can review the result without creating an account.
FAQ
What is Sonomètre Classe used for?
A large colour-coded volume display for a projector, with a sustained-noise sound alert and one-click fullscreen. Shows a relative level, not decibels.
Do I need an account?
No. The tool is available directly in the browser without an account or sign-up.
What should I do if the result looks unexpected?
Check the entered values and compare them with the guidance shown in Sonomètre Classe. Use the result as a planning aid and verify important decisions independently.