Most vocal tuners only check pitch. This one checks whether your voice is balanced — breath support and an open mouth — or whether your throat is doing the work instead (why singers squeeze and go flat on high notes). Set a baseline with your own easy "ah", then sing: when all five signals stay inside your baseline window the sound crosses the balance line; when one drops, a throat-tension gauge rises. No scores. Phone browser, no app, no sign-up, audio never leaves the device.

Hi Product Hunt — I'm a vocal coach in Korea. The most common problem I see is "my throat squeezes on high notes," and people practicing alone can't tell when it starts. So I built a page that shows it on a phone. How it works: WebAudio in the browser, five signals (fold contact, forward resonance, pitch, breath, power). At the start you sing one easy "ah" — that's your baseline — and everything after is a deviation from it, so there are no absolute scores by design. A "throat tension likelihood" gauge rises when the throat compensates. Nothing is uploaded. Missions: long tones up by semitones ("held to +5 st, wobble from +7"), siren glide, staccato onsets, 5-note scale. The English version is brand new — tell me where it feels wrong on your voice, and your long-tone number.

VBTI Balance Tuner

See the moment your throat takes over — free, in-browser

See the moment your throat takes over — free, in-browser