Read a short passage aloud and VoiceScope maps your pitch in real time — frequency in hertz, musical notes, and how it moves over time. Everything runs in your browser; audio never leaves your device.
or press Space · stop whenever you like
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now—
median so far—
Your pitch, livethe chart compresses as the recording grows
Read this aloud
Results
Profile
▶ Click the chart to play from that point; click near the line to pause. Hover to see the time.
raw points trimmed outliers EMA MA
Analysis settings
Changing anything below switches the profile to Custom — your own preset.
Outlier trimming Percentile trimming removes the given % of the lowest and highest values across the whole recording. "Smart" looks for short glitches against neighbouring frames and also cuts very short global extremes near pauses; sustained pitch changes are kept.
Sensitivity 0.55Confidence threshold of the pitch detector. Lower catches more quiet/unclear sounds (and noise). Higher keeps only clear, stable tone. If your voice gets lost — lower it; if it picks up junk — raise it.
MA window 72 msHow much time the moving average smooths over. The window is centred on each point.
EMA span 72 msEquivalent span of the exponential moving average. Smaller reacts faster; larger smooths more.
Fixes spurious jumps of exactly 2× up/down when the detector confuses the octave. Makes the contour smoother.
Min duration 3Drops voiced bursts shorter than N frames — usually clicks, breaths and artifacts, not voice. 0 — keep all.
Estimates the background noise level from quiet sections and cuts anything below it. Helps in a noisy room.
Your last 30 recordings are stored locally in this browser (up to 1 GB); older ones are removed automatically. Export downloads the pitch contours as JSON.