Free · in your phone's browser · nothing uploaded
What note is this?
Tap, then make the sound: ping a glass, ring the doorbell, let the kettle whistle. You get its note and how far off it is. Then hear that note in a running club track.
The microphone opens when you tap, listens for three seconds and closes. Nothing is recorded or sent anywhere.
No microphone here? Try an example:
Things with a note in them
A wine glass, tapped rings one clear note, often somewhere around A5. Hold the phone close: it fades in a second.
A kettle whistling sits very high, often past C7. It reads up to about 4,000 Hz, the top of a piano.
A ding-dong doorbell plays two notes. This names the one that rings longest, usually the second.
A bottle, blown across hums a low note. Pour in water and it goes up: try it.
A car horn with one horn reads well. Many cars sound two at once, a few notes apart; then you may get a low note the pair make together, not either one.
Sounds with no note in them
A hiss, a rustle, running water, a door slamming, applause: noise has no steady pitch, so there is no note to name, and the tool says so. Neither does a chord: it reads one note at a time, the way a tuner does.
What the numbers mean
It names the nearest note on a piano (A4 is 440 Hz) and says how far off the sound is, in cents: a hundred cents is one semitone, and within about twenty you'd call it in tune. "Play the true note" plays that note clean, so you can hear the difference.
Octaves count: a kettle on C7 and a bottle on C3 are both a C. If you want the note of your own voice, use What note am I singing?
Then make something of it
The note goes into Brumm as a melody, in time and in key, inside a club track with a beat and a bass. No account, no upload: the note travels inside the link itself. Your doorbell, as a riff.
The sound stays on your phone: the tool reads it in the browser and keeps nothing. How the site counts visits.