Headphones. Playback starts silent. Keep volume low. Stop if it gets worse.
Not a treatment. Not medical advice.
Press Play, then sweep until the tone matches the ring. Use ±1 / ±10 to fine-tune.
Sine is a pure tone. Narrow noise is a thin hiss at that pitch.
Once the pitch is found, switch to Notch. A bed of sound should remain, with a hole at that frequency. The ring sits in the hole.
If the noise vanishes, volume is too low or the notch is too wide.
A short louder burst, then silence. A home trick, not a cure.
Pan toward the ear that rings.
Settings stay on this device (browser storage). Spacebar toggles play.
Keep it quiet. Stop if it gets worse.
Public, free, runs in the browser. Nothing is uploaded.