Voice Pitch Analyzer — Measure Your Voice in Hz

Pitch is the perceived height of a sound. This tool estimates its fundamental frequency (F0) in hertz (Hz) from a voice or a clear single tone. Higher Hz values generally correspond to higher pitch.

Speak naturally to see your usual speaking pitch and how it changes over time. The chart can help you explore intonation, but the results are estimates. This tool does not judge gender, voice quality or vocal health.

1. Select Microphone and choose a 10-second measurement or free measurement of up to 60 seconds.
2. Press Start measurement and allow microphone access. Speak naturally in a quiet place while watching the input level and current frequency.
3. Use Stop measurement to finish early, or let the time limit stop it automatically.
4. Review the chart, average, lowest and highest detected pitch, and detected-frame percentage. Use Save result image to download an 800 × 480 px PNG containing the graph, statistics, duration and input method.

If the page becomes hidden, the microphone stops. An audio interruption also stops measurement while keeping any results collected so far.

Select WAV file and choose an uncompressed WAV of 0.1–60 seconds, up to 25 MiB. Supported input is 8–48 kHz, mono or stereo: standard PCM (format 1, 8/16/24/32-bit) or 32-bit IEEE Float (format 3). The original file must contain no more than six million sample values.

For stereo audio, the channel with greater signal energy across the file is analyzed, excluding its DC offset. The two channels are not averaged, so opposite-phase channels do not cancel each other out.

MP3, M4A/AAC, FLAC, compressed WAV, 64-bit float WAV and WAVE_FORMAT_EXTENSIBLE are not supported. Renaming an extension does not convert the audio. You can cancel analysis; browser decoding may still finish, but a cancelled result is discarded.

The supported pitch range is 50–600 Hz. Average, lowest and highest values use detected frames only. The voiced ratio is the proportion of analyzed frames with a detected pitch; it is not a score for your voice or measurement accuracy.

The vertical axis adjusts to your results by default. Select Fix vertical scale at 50–600 Hz to compare charts on the same scale. Click or tap a detected point to inspect its time, frequency and note. With the chart focused, use the left/right arrows or Home/End keys to move between points.

Note names use 12-tone equal temperament with A4 = 440 Hz. The cent value shows the difference from the nearest note. The separate example chart is illustrative and never replaces your measurement.

Check microphone permission, connection and input level. Move slightly closer for a quiet input, or farther away if the sound is distorted. Measure one voice at a time in a quiet place.

Silence, breath, consonants, background noise, reverberation, multiple voices and music can cause missing or incorrect estimates, including octave errors. Sounds outside 50–600 Hz may not be detected. The input meter indicates signal level, not noise or accuracy.

WAV decoding depends on browser support. If it is unavailable, try an up-to-date compatible browser. Measuring everyday speaking pitch is different from testing your full singing range or tuning an instrument.

Pitch estimation uses processing based on the YIN algorithm by de Cheveigné and Kawahara (2002). File analysis runs in a browser worker to keep the interface responsive; processing time depends on the device and audio.

This tool does not upload microphone audio or selected files to a server. Microphone measurement keeps pitch values and timestamps in page memory, not a playable recording. The exported PNG does not include the original audio filename.

Where supported, the tool requests that echo cancellation, noise suppression and automatic gain control be disabled. Some devices or browsers may not apply those settings. On shared devices, manage downloaded images and download history separately.