Match the meter to a known level. Hold a trusted SPL meter next to this mic in a steady sound, type its reading, and measure. With an acoustic calibrator, enter 94.
A verified report is court-ready: it carries a SHA-256 data hash, a trusted timestamp, a unique ID and a signature line.
dBA Volume
Audio is processed in your browser — nothing is recorded or uploaded.
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Grab the FREE version of Youlean Loudness Meter and achieve the correct loudness levels of your audio
FAQ
Does this meter transfer data to a server?
No, all audio is processed locally in your browser. Nothing is recorded or uploaded.
What can it measure?
dB (no weighting / A-weighted / C-weighted) and LUFS (Momentary & Short-Term, ITU-R BS.1770-4), plus a frequency spectrum and a hearing-safety panel.
Is it free?
Yes, metering and a watermarked demo report are free. A one-time purchase unlocks unlimited verified reports (no subscription).
I bought it but reports are still locked.
Sign in with the email you used at checkout, we email you a sign-in link right after purchase. Once signed in, reports unlock
automatically.
Can I use my account on multiple devices?
Yes, just sign in with the same email on any device.
Is the meter calibrated?
It’s an uncalibrated estimate by default. You can calibrate against a reference meter for absolute dB.