Voice pitch analyzer — find the note you are singing

What is a voice pitch analyzer?

A voice pitch analyzer listens to a sung or hummed pitch and names it. This pitch analyzer uses the microphone to estimate the fundamental frequency of your voice, then shows the note in scientific pitch notation (for example G3 or C5), the frequency in hertz, and the cents offset from that note. It answers "find my note" for the pitch you are holding right now. It does not classify your voice type. Vocal range is the span from the lowest pitch you can sing to the highest useful one, and a single sample is only one point on that span. Sing a low note and a high note separately if you want both ends.

What you get from a sung note

A live check of the pitch your voice is producing, with enough detail to see whether you are on the note or drifting.

1. The note you are holding: The large text is the singing note, letter plus octave. Hold a vowel such as "ah" so the analyzer can lock onto one fundamental instead of the moving pitch of speech.
2. Cents, so you can see if you are on the pitch: The second line includes cents. Within 5 cents you are very close to the named note. A larger number means you are sharp (positive) or flat (negative) of that pitch.
3. A rough range, if you sing both ends: Sing your lowest comfortable note, write down the name, then sing your highest comfortable note and write that down. The pair is a practical sketch of your range. The table of soprano, mezzo, alto, tenor, baritone, and bass spans is only a reference for those names.
4. Speaking pitch is a different task: Ordinary speech jumps between pitches. The analyzer is meant for a sustained sung or hummed tone. A spoken sentence will flicker and is not a reliable "my speaking note."
5. Your voice is not uploaded: Analysis runs in the browser. The microphone stream is not recorded or sent to a server.

How to find my note

One steady sung pitch is enough for a name. Two pitches, low and high, sketch a range.

1. 1. Start the analyzer and allow the microphone: Click Analyze My Voice and accept the browser prompt. Use the Mic Test first if you are not sure the microphone is live.
2. 2. Sing one vowel and hold it: Choose a comfortable pitch, sing "ah" or hum with a closed mouth, and keep the pitch still. Stay about 15–30 cm from the microphone. Vibrato on purpose will move the note name.
3. 3. Read the note, then optional low and high checks: The readout is the note you are singing at that moment. To map a range, repeat on the lowest note you can sing cleanly and the highest note you can sing cleanly, and keep both names. That span is not a voice-type label.

Make the sung note easier to read

The analyzer follows the fundamental of the voice, which is fragile if the tone is breathy or moving.

1. Use a quiet room and a still pitch: Room noise and a wobbling pitch both move the detected period. A plain sustained vowel is easier to name than a riff.
2. Do not cover the phone microphone: On a phone, the mic is usually along the bottom edge. Holding a finger over it drops the level and the note starts to jump.
3. Treat the range table as labels, not a diagnosis: Published ranges overlap, and voice type also depends on where the voice is comfortable and how it sounds. Matching one note to "tenor" or "soprano" from this page would be a guess.
4. High whistle tones may fall outside the detector: The estimator covers about 50 Hz to 2000 Hz. Most modal singing is inside that. Notes around C7 and above can fail to register.

Sources & References

References for vocal range and for estimating the fundamental frequency of a voice.

• Vocal range

  “Vocal range is the range of pitches that a human voice can phonate. A common application is within the context of singing, where it is used as a defining characteristic for classifying singing voices into voice types.”

  The same article states that vocal range itself does not determine voice type. This analyzer names the pitch you sing and leaves classification alone. The on-page spans for soprano through bass follow the approximate operatic ranges summarized there. en.wikipedia.org/wiki/Vocal_range

• Pitch detection algorithm

  “A pitch detection algorithm (PDA) is an algorithm designed to estimate the pitch or fundamental frequency of a quasiperiodic or oscillating signal, usually a digital recording of speech or a musical note or tone.”

  This voice pitch analyzer runs an autocorrelation PDA on the live microphone signal, which is the same family of estimators Wikipedia describes for speech and musical tones. The result is shown as a note name rather than left as a raw frequency. en.wikipedia.org/wiki/Pitch_detection_algorithm

Frequently Asked Questions

Have questions? We have answers.

Related tools

Explore other diagnostic tools that pair well with this page.

• Note Finder→Note finder online—identify the music note you sing or play. See the note name, octave, and frequency.
• Pitch Detector→Pitch detector online—detect the pitch of any sound with your microphone. See note, frequency, and tuning accuracy.
• Frequency Detector→Frequency detector online—measure a sound in hertz. Read Hz, the nearest note, and cents.
• Mic Test→Mic test online—check your microphone with live waveform and volume level.
• Tone Generator→Tone generator online—play pure sine, square, triangle, or sawtooth tones from 20 Hz to 20 kHz for speaker and audio testing.
• Sound Test→Sound test online—check your speakers, test left/right channels, and verify stereo balance.