Chord Identifier by Sound
Play a chord and let your microphone suggest its name. The early frequency-based detector is experimental and works best for clean, sustained chords in a quiet space.
Listen to a single chord
Start the microphone, allow access, then play and hold a chord. The demo uses a silent C-major sample so you can explore the result without microphone access.
Ready when you are. Start the microphone or try the demo.
Audio stays in this browser and is not recorded or uploaded. Listening stops when you leave this tab. Stop listening before changing microphones.
Live chord suggestion
Detected notes: Start listening to detect notes
Experimental suggestion. Harmonics and background noise can affect the result; check by ear.
Check a chord by selecting its notes →How to use the microphone chord finder
Choose Start microphone and respond to your browser’s permission request. Play one chord at a time and hold its notes together for a moment. Watch the input meter to confirm that sound is reaching the page, then compare the detected notes with what you played. A stable reading produces a chord suggestion; several chord names can describe the same notes.
Use Stop listening to release the microphone. Your last recognized chord remains available until you clear it or start a new session. If your computer has several inputs, choose a microphone after the first successful permission request, stop listening, then select the input for your next session. The silent C-major demo lets you explore this flow without granting microphone access.
Microphone chord detection: what to expect
Microphone audio is processed locally using the Web Audio API. Mixed instruments, harmonics, detuning and background noise can cause false or missing notes. This is a practice aid, not verified song transcription. Try a clean guitar or keyboard chord, avoid talking while the detector listens, and adjust your distance if the input is very quiet or too loud.
For a chord whose notes you already know, use the note-based chord identifier. For a recording with several chord changes, use the audio chord finder. Read the audio privacy policy for details about each tool’s processing.
Microphone chord finder FAQ
How do I identify a chord with my microphone?
Start the microphone, allow access in the browser, then play three or more different notes together. Hold the chord while the detector looks for a stable set of notes. The result shows a possible chord name and its detected notes.
Is my microphone audio recorded or uploaded?
No. The live detector processes microphone samples in this browser. It does not create a recording or send microphone audio to the chord service. Stop listening to release the microphone; leaving this tab also stops the session.
Why does the page not show a chord?
First check the input meter. If it stays low, move closer and check your selected microphone. If notes appear without a chord name, hold a cleaner chord and reduce background noise. A single note, speech or a full song is not a reliable input for this detector.
What can I do if microphone access is blocked?
Open this site over HTTPS, allow microphone access in your browser’s site settings and check operating-system microphone permissions. Connect a microphone if none is available. Close other apps using the device, then retry. You can also try the demo without microphone permission.