A#4
440.0 Hz
0 cents
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Standard tuning:

Guitar

Violin

Ukulele

It is recommended to adjust your microphone level on the left panel to get a stable tune detection.

(*) Keep in mind common computer microphones may range from 100Hz to 14KHz, and low tune instruments like bass have note frequencies below 50Hz.

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This page uses your microphone to tune up your instrument.

If you have one, please make sure it is configured properly and you allow this page to use it.