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Allow Microphone Access
Select an available microphone and start the live detector directly in your browser.
Sing into your microphone and instantly see the musical note detected from your voice. This real-time singing note detector shows the note name, octave, frequency and cents deviation while highlighting the corresponding piano key.
Start the microphone and sing a reasonably steady pitch. The detector continuously analyzes the incoming signal and updates the nearest musical note, octave, frequency and tuning deviation in real time.
The what note am I singing tool listens to your microphone continuously while the detector is running. Instead of recording a complete performance and analyzing it afterward, it processes short sections of the incoming audio signal as you sing.
When the signal contains a sufficiently clear periodic pitch, the detector estimates its fundamental frequency. That frequency is converted to the nearest note in twelve-tone equal temperament using A4 = 440 Hz as the reference.
The display then separates that information into four useful readouts: note name, octave, frequency in hertz and cents above or below the nearest equal-tempered note. The piano keyboard follows the same detected note.
Select an available microphone and start the live detector directly in your browser.
A relatively steady single note gives the detector a clearer periodic signal to analyze.
See the nearest musical note and its octave update as your vocal pitch changes.
Use the tuner display to see whether the detected pitch sits above or below the center of the nearest note.
A note name by itself does not describe everything the microphone detects. The four live measurements help you see both the musical identity of the pitch and its measured frequency position.
The letter and accidental identify the nearest equal-tempered pitch class, such as C, F♯ or A.
The octave distinguishes pitches with the same note name at different frequency ranges, such as A3 and A4.
Hertz describes the estimated fundamental frequency detected from the incoming vocal signal.
Cents show how far the detected frequency lies above or below the nearest equal-tempered note center.
If you already know which note you intend to sing, the detector can also work as a simple singing tuner. Instead of asking only “what note is this?”, watch the cents meter while sustaining the target pitch.
A value near zero means the detected fundamental is close to the equal-tempered center of the displayed note. A negative value means it is below that center; a positive value means it is above.
Vibrato, pitch bends, stylistic intonation and expressive movement intentionally cause the cents value to move.
Note names become easier to interpret when they are connected to an instrument layout. The live keyboard highlights the detected semitone so you can see where the sung pitch sits on a piano.
This is especially useful when you are trying to locate a vocal pitch before playing it on a keyboard, checking the octave of a note, or connecting what you hear with a concrete musical key.
Real-time pitch detection works best when the microphone receives one reasonably clear pitched source. Background music, another singer, strong room noise or a very weak input can make the fundamental frequency harder to identify.
You do not need to sing loudly. Use a comfortable vocal level and keep a practical microphone distance. Sustaining a vowel is often easier for a pitch detector to follow than rapidly changing speech because the signal remains more periodic.
Try a steadier sustained pitch, reduce competing sounds and keep the microphone position consistent before interpreting rapid note changes as changes in your voice.
This page has one specific job: continuously identify the pitch currently detected from your microphone. It is not designed to calculate your complete vocal range, assign a voice type or give you a score for matching a predetermined note.
If you want to find your lowest and highest detected notes, use the Vocal Range Test . If you want the browser to give you a target pitch and measure your attempt to reproduce it, use Sing the Note .
Keeping those tasks separate makes the live vocal note detector fast and simple: start the microphone, sing, and read the current pitch.
Use the live note detector for identifying a current pitch, then move to a dedicated test when you want to measure a different musical skill or vocal characteristic.
Start the microphone and sing a clear sustained pitch. When a sufficiently periodic signal is detected, the tool estimates its fundamental frequency and displays the nearest musical note and octave.
Yes. While the microphone is active, the page repeatedly analyzes short sections of the incoming signal and updates the note display as the detected pitch changes.
A is the note name and 4 identifies its octave. In the reference system used by this tool, A4 corresponds to 440 Hz.
The cents value is measured relative to the nearest equal-tempered note. A negative value is below that note center and a positive value is above it. There are 100 cents in one equal-tempered semitone.
Yes. If you know your intended note, you can sustain it and watch the live cents display to observe how the detected fundamental frequency sits relative to the equal-tempered note center.
Vocal signals contain a fundamental and multiple harmonics. Noise, breathiness, weak fundamentals, strong overtones and rapidly changing sounds can make pitch estimation less stable and can occasionally produce octave errors.
The displayed frequency and cents value can move as vibrato changes the instantaneous fundamental pitch. The tool does not label vibrato quality; it simply follows the pitch it can detect.
No. This tool identifies the current note in real time. The Vocal Range Test is a separate guided tool designed to track the lowest and highest reliably detected notes across a range session.
No audio-file upload is required. The detector uses the microphone through browser audio APIs and the analysis in this page runs locally in the browser.
Ordinary speech can change pitch rapidly and may include sections without a strong periodic fundamental. A sustained sung vowel generally provides a clearer signal for note detection.
Use Ronter Audio Lab to explore your voice and musical skills, or contact Ronter Sound when you are ready to work on a recording, production, mixing or studio project.
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