Real-time voice & pitch analyzer for musicians and vocalists
This pitch detector analyzes your voice in real time using a microphone and displays the detected musical note, frequency (Hz), and tuning accuracy instantly. As you sing, the tool tracks pitch changes live and shows whether the note is sharp, flat, or in tune based on standard tuning (A4 = 440 Hz).
A pitch detector is a pitch detection tool that measures the fundamental frequency of sound produced by the human voice. It converts microphone audio into frequency values (Hz) and maps them to the closest musical note using standard note frequency references.
This pitch detector is designed for real-time vocal analysis, not audio file uploads.
The tuning meter visualizes intonation accuracy relative to the detected pitch.
This cent-level feedback allows precise vocal pitch control and intonation training.
This pitch detector uses Standard Tuning (A4 = 440 Hz) as the reference pitch.
A4 at 440 Hz is the globally accepted reference used by orchestras, music schools & conservatories, and pianos and digital instruments.
Alternative standards (e.g., Verdi tuning) are not applied in this tool.
The pitch detector can identify low and high vocal frequencies typically produced by human voices.
This range covers bass, baritone, tenor, alto, and soprano vocal registers. Actual accuracy depends on microphone quality and background noise levels.
This pitch detector calculates pitch by identifying the fundamental frequency of the human voice captured through the microphone. The detected frequency is then converted into a musical note using standard tuning references.
The tool analyzes incoming sound waves and detects repeating patterns using an autocorrelation algorithm. The strongest repeating interval represents the fundamental frequency (Hz).
Fundamental Frequency (Hz) = Sample Rate / Period Length
Once frequency is detected, it is converted to a musical note using the equal temperament system with A4 = 440 Hz.
Note Number = 69 + 12 × log₂(Frequency / 440)
The calculated note number is then rounded to the nearest integer and mapped to a musical note name (C, D, E, F, G, A, B).
Tuning accuracy is measured in cents, where 100 cents equals one semitone.
Cent Deviation = 1200 × log₂(Detected Frequency / Reference Note Frequency)
This value determines whether the voice is flat, sharp, or in tune and drives the tuning meter display.
| Musical Note | Octave | Frequency (Hz) | Pitch Class | Reference Standard |
|---|---|---|---|---|
| C | 4 | 261.63 Hz | C | Equal Temperament |
| D | 4 | 293.66 Hz | D | Equal Temperament |
| E | 4 | 329.63 Hz | E | Equal Temperament |
| F | 4 | 349.23 Hz | F | Equal Temperament |
| G | 4 | 392.00 Hz | G | Equal Temperament |
| A | 4 | 440.00 Hz | A | Standard Tuning (A4) |
| B | 4 | 493.88 Hz | B | Equal Temperament |
Yes. The real-time pitch tracker displays continuous pitch changes over time, making it suitable for analyzing vibrato and pitch modulation, identifying pitch drift during sustained notes, and monitoring vocal stability.
This is especially useful for vocal training and melody accuracy assessment.
Yes. This pitch detector is commonly used for vocal pitch accuracy practice, intonation control, melody matching, and ear training.
It is trusted by music students, vocal coaches, and educators, including users from over 200 music schools and conservatories.
This online pitch detector works on modern devices with a microphone and supported web browser.
No software installation is required.
No. This is a free online pitch detector.
Microphone access is temporary and user-controlled.
The pitch detector provides real-time cent-level accuracy under normal conditions.
Accuracy depends on microphone sensitivity, background noise, and vocal clarity. For best results, use a quiet environment and sing a steady note.
This pitch detector is designed for vocalists and singers, music students, vocal coaches, sound engineers, and music educators.
It is ideal for real-time voice pitch monitoring, not instrument tuning via audio files.
Frequency (Hz) is a physical measurement of sound wave vibration, while pitch is how humans perceive that frequency.
This pitch detector converts frequency into musical note names using standardized note frequency tables.
Yes. Microphone input is processed locally in your browser.
You can stop detection at any time by disabling microphone access.
The piano keyboard highlights the detected pitch instantly.
This pitch detector focuses on voice-only real-time pitch detection, instant visual feedback, cent-accurate tuning display, and local, private audio processing.
It is built for clarity, accuracy, and educational use, not file conversion or audio uploads.
This pitch detector analyzes live voice input only.
For a deeper explanation of pitch detection concepts, download our Pitch Detector Tools PDF guide .