Voice Vibrato Analyzer
Hold a sustained note and the tool measures your vibrato rate (oscillations per second), depth (cents), and regularity in real time, with a live pitch-fluctuation graph.
ℹ Vibrato is measured only on a steadily held note — sliding or changing pitch reads as drift, not vibrato. Rate and depth are estimates from your pitch track, and the “healthy” 5–7 Hz guideline is a style convention, not a rule (genres and singers vary widely). Your mic is analyzed live and never recorded or uploaded.
Pitch fluctuation over the last ~1.5 s (cents above/below your average). Smooth, even waves ≈ a controlled vibrato.
How It Works
The tool tracks your pitch live with the YIN algorithm and records the last ~1.5 seconds of pitch as cents above and below your average for the note. Vibrato is a regular oscillation of that pitch: the rate is how many full cycles occur per second (measured from zero-crossings of the de-trended pitch over the real elapsed time, so it doesn’t depend on frame rate), the depth is roughly half the peak-to-peak swing in cents, and regularity reflects how evenly spaced the cycles are. A well-developed classical vibrato is often around 5–7 Hz with a depth near ±50–100 cents, but this varies by genre and singer. Everything runs live on your device; nothing is recorded.
Because it reads pitch only, it needs a sustained, single note — if you slide or change notes, the swing looks like drift and the tool says so. The 5–7 Hz figure is a convention, not a target: pop, folk and early-music styles use less or no vibrato, and a fast, narrow oscillation can be a healthy choice or an unwanted tremolo depending on context. Use the numbers and graph to observe and develop your vibrato, not to grade it.