Frequently Asked Questions

A pitch detector is a tool that listens to a sound through your microphone and identifies the musical note being produced — including the note name (e.g. A4), its frequency in Hz, and how many cents sharp or flat it is from perfect tuning.

Most pitch detectors don't account for voice type, causing male voices to often read one octave too low. Our tool lets you select your voice type (e.g. Tenor, Bass) so the algorithm uses the correct frequency range and gives you accurate octave readings.

High-frequency signals can be harder to track reliably. We display a Confidence Indicator so you always know how trustworthy the current reading is. A low-confidence signal means you should move closer to the mic or reduce background noise.

No. All processing happens locally in your browser using the Web Audio API. No audio data is ever uploaded or stored.

Yes. The tool is fully responsive and works on iOS (Safari) and Android (Chrome). No app download required.

Any microphone that your browser can access will work. A directional headset mic or USB condenser mic gives significantly better results than a built-in laptop microphone because it reduces room noise and keyboard click interference. For casual practice a built-in mic is sufficient in a quiet room.

The confidence bar reflects how reliably the YIN algorithm identified a fundamental frequency in the audio frame. It turns red when the signal-to-noise ratio is too low, when the note is being attacked or released rather than sustained, or when multiple frequencies are present simultaneously. Move closer to the mic and reduce background noise to improve confidence.

Yes. It works with any monophonic (single-note) audio source: voice, violin, flute, guitar (single strings), trumpet, and more. Polyphonic inputs such as chords on a piano or guitar will produce unreliable readings because the algorithm is designed for one pitch at a time.

Yes. The pitch detector works with any monophonic sound source — voice, guitar, violin, flute, and more. Play each string individually and the tool will show the detected note name and cents deviation so you can tune to pitch.

Both use the same detection engine, but serve different goals. The pitch detector focuses on real-time note-by-note accuracy for checking intonation. The vocal range test maps your full singing range from lowest to highest note, helping you identify your voice type (Soprano, Tenor, Bass etc.).

Frequency is the physical measurement of sound vibrations per second (Hz). Pitch is the musical label we assign to a frequency — for example, the note A4 corresponds to 440 Hz. Our pitch detector shows both values simultaneously.

Under good conditions (quiet room, close-mic, sustained note, correct voice type selected), the YIN algorithm produces pitch estimates accurate to within 1-2 Hz, well within 5 cents for the mid-vocal range. Accuracy decreases at the extremes of the vocal range, during rapid note transitions, and in noisy environments.

The tool requires Web Audio API and getUserMedia support. All modern browsers support these: Chrome 74+, Firefox 76+, Safari 14.5+, Edge 79+. Internet Explorer is not supported.

An octave detector is a pitch detection tool that correctly identifies which octave a note belongs to — not just the note letter name, but whether it is C3, C4, or C5. Most online pitch detectors fail at octave detection for singers because they don't account for voice type. This tool acts as an octave detector by letting you select your voice type (Soprano to Bass), which constrains the frequency search range so the correct octave is always identified.