Violin · intonation lab

TonTreffer

Live pitch readout, or a full piece: each detected tone contributes one average distance to the nearest half-step; your score uses the mean across all tones in the take.

Microphone needs HTTPS or localhost. Disable noise suppression in system settings if the reading feels jumpy.

Waiting for audio…

— 0 Hz

−500+50

0 cents from nearest semitone

Play a whole song or study. Whenever the pitch settles on a new tone, we measure how far it sits from the nearest chromatic half-step, average that for the tone, then—at the end—average across all tones for your score and rank.

Piece length

Mic off · choose a limit or open end, then begin.

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Now hearing

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−500+50

— from nearest semitone

Recent tones (mean |¢| per tone)

Tones 0

Song avg · |¢| —

Piece score

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Mean deviation — cents

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♥ New personal best

Your stand —

Best score: —
Pieces: 0
Last piece: —

A4 = 440 Hz · each tone yields one average deviation to the nearest half-step; the piece score uses the mean of those tone averages. Rank names celebrate the craft—stay curious, stay in tune.