Disclaimer

Not a calibrated instrument

Consumer browsers, operating systems, and audio hardware all shape the sound before it reaches your ears, and none of it is calibrated. A tone that measures exact in code can play back louder, quieter, or distorted depending on the device — so every result here is approximate and comparative, never a certified measurement.

Not a hearing test or medical device

Nothing on this site tests, screens, diagnoses, treats, or monitors hearing in any clinical sense, regardless of how the results feel. Real hearing assessment requires calibrated equipment, a controlled environment, and a qualified professional — none of which a web page can provide.

If you notice sudden hearing changes, ringing that persists, pain, dizziness, or one ear behaving very differently from the other, stop using test tones and consult a medical professional promptly. Do not wait, do not self-test repeatedly, and do not use these pages to decide whether you need care.

Safe listening rules

Test tones can tire or harm ears faster than music because they concentrate energy at one frequency. Always start at the lowest audible level, raise it in small steps, keep the safe volume limit switched on, and limit continuous exposure — a few minutes per tone with breaks is plenty for any check.

Never use tones to drown out background noise, never test at maximum volume, never wear headphones at high level around traffic or machinery, and keep children and pets away from loud playback. Stop immediately if anything hurts, rings, or feels wrong.

No therapeutic claims

No frequency on this site — including Solfeggio tones, 432 Hz, or 528 Hz — heals, treats, or improves any condition, and nothing here suggests otherwise. Descriptions of tones as pleasant or commonly used for relaxation report listening habits, not effects. Anything framed as treatment elsewhere on the internet should be treated with skepticism unless it comes from qualified evidence.