What to do with your frequency
Bring it to an audiologist. Pitch matching is part of a standard tinnitus assessment; arriving with a self-measured estimate saves time and gives the clinician a cross-check. Tinnitus that is sudden, one-sided, pulsing, or paired with hearing loss or dizziness warrants a prompt appointment regardless of any number.
Tune your masking. The goal of masking is to blend with the tinnitus, not bury it - set a broadband sound at or just below the tinnitus loudness. Colors with energy near your matched frequency work best: high-pitched tinnitus (the common kind) blends well with white or gray noise; rarer low-pitch tinnitus pairs better with pink or brown. The full masking-and-habituation approach is in the tinnitus relief guide.
This is not a medical device. It measures a perception; it diagnoses nothing and treats nothing. It exists because knowing your frequency is genuinely useful - and because measuring the sound often makes it feel smaller.