This voice vibrato analyzer 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 singing 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 straight-tone styles use little or no vibrato by design, while gospel and R&B singers often use a wide, expressive pitch modulation that sits outside the classical range. A fast, narrow oscillation above 7 Hz can be a healthy stylistic choice or an unwanted tremolo; a slow, wide one below 5 Hz can be an expressive wobble or a sign of tension — context and intention matter far more than the number. For a complementary view of your voice, the vocal pitch checker lets you compare your sustained note against a target pitch in real time. Use the numbers and graph to observe and develop your vibrato, not to grade it.
Is my microphone recorded or uploaded?
No. Audio is analyzed live in your browser and never leaves your device. Stopping the mic releases it immediately.
What’s a “good” vibrato rate?
Classical singing often lands around 5–7 Hz, but it’s a style convention, not a rule. Faster can read as tremolo and slower as a wobble, yet plenty of music uses a straight tone or a distinctive vibrato on purpose.
It says “drift” or no vibrato — why?
You need to hold one steady note. Sliding, scooping, or changing notes makes the pitch wander rather than oscillate, so the tool won’t read it as vibrato.
How accurate are the rate and depth?
They’re solid estimates from your pitch track, measured over real elapsed time. Noise, breathiness, and very fast or shallow vibrato reduce accuracy — sing clearly and close to the mic.
Can it judge my technique?
No. It measures; it doesn’t judge. Whether a given vibrato suits the music is an artistic call for you and your teacher.
What is the difference between vibrato and tremolo in singing?
In vocal acoustics, vibrato is a pitch oscillation (the note cycles above and below center pitch), while tremolo refers to an amplitude or loudness oscillation (the volume pulses rather than the pitch). In practice, singers often use the words interchangeably, but this tool measures pitch oscillation only. A very fast, shallow pitch fluctuation above about 7–8 Hz is sometimes described as sounding "tremoloish" and may indicate tension rather than a free, resonant vibrato.
What does vibrato depth in cents mean?
Depth is how far your pitch swings above and below the center of the note, measured in cents (hundredths of a semitone). A depth of ±50 cents means your pitch oscillates roughly a quarter-tone on each side. Classical teachers often target ±50–100 cents for a full, expressive sound, but this is a guideline — a narrower depth can sound refined or intimate in the right context, and a wider one can sound exposed or unstable.
How can I use this tool to practice and develop my vibrato?
Sing a comfortable, open vowel on a mid-range pitch and watch the pitch-fluctuation graph. If the line is flat (straight tone), experiment with loosening jaw tension or allowing the diaphragm to pulse gently. If the graph shows irregular peaks, focus on evenness rather than depth. Repeat on different vowels and pitches to see how your vibrato varies — consistency across the
full singing range is a sign of developing technical freedom.
Does vibrato regularity matter?
Regularity measures how evenly spaced the oscillation cycles are. Highly regular vibrato (consistent timing between peaks) is generally associated with classical and operatic technique, where a controlled, even oscillation is valued. Irregular vibrato can sound expressive and natural in folk, country, and pop styles, or it can indicate fatigue, tension, or inconsistent breath support. The regularity readout gives you objective data to correlate with what you and your teacher are hearing.