Measurement Disclaimer

Estimates, not measurements of record

Every number on this site comes from a consumer microphone with unknown gain and frequency shaping, processed in a browser that may apply its own gain control. Readings are therefore screening estimates as documented in accuracy and limitations — useful for awareness and before-and-after comparison, never a certified result.

No safety, medical, legal or workplace decisions

Do not base hearing-safety, workplace-compliance, legal-evidence or medical decisions on these estimates. Use a calibrated Class 1 or Class 2 instrument operated by a qualified person for anything that will be challenged or regulated. Exposure bands in noise exposure are educational screening bands, not personal medical advice.

Your responsibility

You are responsible for microphone permissions, local recording laws and how you interpret exported CSV or JSON values — see terms and privacy. If you notice lasting ringing, muffled hearing or pain, consult a hearing professional. Questions: contact.