Sound tools

Pitch detector

Detect the nearest musical note, frequency, cents offset, and confidence from your microphone.

Idle

Microphone audio is analyzed on this device and is never uploaded.

---- Hz

Cents--

Confidence--

Procedure

Move to a quiet room. Allow microphone access.
Play or sing one steady note. Prevent microphone clipping.
Wait for the confidence value to settle. Then read the note, frequency, and cents.

Function

Detection limits

Harmonics, vibrato, chords, room noise, and automatic input processing can cause an incorrect fundamental.

Use a current version of Safari, Chrome, Edge, or Firefox. Microphone tools require HTTPS and microphone permission.

Sound tools