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  1. Home
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  3. Bass guitar tuner
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Bass guitar tuner

Play reference tones for each bass string and tune by ear, or let the microphone name the note and how far off it is.

This tool is in beta

Still being tested. If a result looks wrong, tell us.

Report a problem

Detected note

Press Start tuning, allow the microphone, then pluck a string. The tuner names the note and how many cents it sits from pitch.

Reference tones

Tap a string to hear its open tone, then match it by ear.
The low B on five and six string sets sounds at 30.9 Hz, below what many laptop and phone microphones pick up. If it will not register, tune that string by ear against the E string, or touch the string lightly above the twelfth fret and pluck there: the harmonic sounds an octave higher, and the tuner reads that fine.

Detection follows the string's fundamental, not its loudest harmonic, so a low B reads as a low B even when the second harmonic is stronger. Tone length is capped at 4 seconds.

Tuner options

Tuning
Reference pitch440 Hz for A4, 415 to 466
Show flat names, like Bb instead of A#.
Compare what it hears against this tuning's open strings. Off gives a plain chromatic reading.
Reference sound

Tones are synthesized in this tab and the microphone is analyzed a few times a second. Nothing is recorded or uploaded. Tunings: 4-string, 5-string, 6-string, Drop D, Drop C.

Runs on this device. Nothing is uploaded.

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