OneTaskBy Tim King · Updated
Singing Pitch Trainer
Sing a Target Note and See How Close You Are
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How the Singing Pitch Trainer works
Choose a target note and press Play. The singing pitch trainer plays the note for a second, then listens while you sing it back and draws your pitch as a line against the target, in cents. The green band is your tolerance. The table keeps score: how far off you are now, what share of your singing time was on target, and the longest you held it. Nothing is recorded or uploaded.
Singing in tune is a skill you can train, and the fastest way is immediate feedback. When you can see that you are twenty cents flat while you sing, you learn what in tune feels like from the inside, which is something a recording played back later cannot teach.
How the singing pitch trainer scores you
The pitch detector is the one used by the tuner and the frequency detector: a normalised autocorrelation over an 85 ms window, run several times a second. Each reading is converted to cents relative to the target note. A cent is a hundredth of a semitone, so +50 is halfway to the next note up. The trace moves up when you are sharp and down when you are flat, and it turns green when you are inside the tolerance.
The table reports:
- Deviation — your current distance from the target, with which way to move
- Octave check — whether you are singing the right note in a different octave, which is common when a target sits outside a comfortable range
- Time on target — the share of the time you were singing that stayed inside the tolerance
- Current hold and Longest hold — how long you have stayed on target without a break
Choosing a tolerance
Twenty cents is a sensible place to start. Most listeners notice errors above about ten to fifteen cents on a sustained note, so tighten the tolerance to ten as you improve. Widen it to thirty or more while you are learning to find the note at all.
A practice routine
Use the vocal range test first, then pick targets in the middle of your range. Hold each for five seconds, and aim for over 80 % time on target before moving up or down a semitone. Changing the target replays the reference and resets the score. For scales and intervals rather than single notes, the scale player and ear training quiz build the listening side of the same skill.
The reference tone plays through your speakers, so the trainer ignores the microphone for a moment while it sounds. Headphones avoid that pause and stop the speaker leaking into your readings.
FAQ
Why does it say I am an octave above or below the target?
The detector measured your note correctly, but it sits twelve semitones away from the target. That usually means the target is outside your comfortable range and you dropped or jumped an octave. Choose a target closer to the middle of your voice.
Why is the line missing while I sing?
The detector only plots a reading when the sound is a steady, periodic tone. Breathy notes, whispering, consonants and background noise all fail that test. Sing on an open vowel such as "ah", a little louder, and close enough to the microphone.
What tolerance should a beginner use?
Start at twenty to thirty cents and aim to stay inside it for most of each note. Once your time on target is consistently above 80 %, tighten the tolerance by five cents at a time until ten cents feels comfortable.
Is my voice recorded or uploaded?
No. The microphone signal is analysed in your browser a fraction of a second at a time and then discarded. Nothing is stored, saved or sent to a server, and the tool works offline once the page has loaded.
See also: all Audio tools, Images, Video & Screen, PDF, SVG, Simulations & Screensavers, Generative Art, Chart Makers, 3D Model Viewers, Drawing Pads, Mockups & 3D Making, Diagram Makers, 3D Science, Tracker Music.
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Frequency Detector
Read the frequency and nearest note of any sustained tone live.