#HowLoudIsIt
How loud is it here, and how long can your ears take it?
Example reading · start the mic to measure
#HowLoudIsIt- Min
- —
- Average (Leq)
- —
- Max
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- Elapsed
- 0:00
Phone and laptop microphones aren't calibrated, so treat readings as ±5 dB estimates. To calibrate, compare against a known meter and move the offset until they match.
Sound is processed on your device. Nothing is recorded or sent.
Uncalibrated microphone estimates, not a certified sound-level measurement. Accuracy varies by device. Recording levels do not establish the original environment’s loudness. Not medical advice — if you have ringing in your ears or muffled hearing, see an audiologist or doctor.
Hear your world.
hum is a hearing health brand making protection feel desirable, beautiful, and culturally relevant. This initiative starts with awareness: hear for yourself how loud your world actually is, from everyday noise to the places you love.
Protect what you want to keep.
Add your reading to the hum study
Help map how loud schools and music rooms really are. We save only the level, the room type and the school or city you enter. No names.
Take the pledge
“I'll protect my hearing at rehearsals and concerts.”
Become a hum ambassador at your school
Lead hearing safety at your school: measure your rooms, share the meter and get early access to hum gear.
Join our movement
Protect the sound you love. Get hum launch news, hearing tips and early access to new earplugs.
