Acoustic voice analysis
Discover your true voice
Record or upload your singing and get a detailed, science-based picture of your pitch, stability, range and tone — with personalised exercises to improve.
- Real signal analysis
- Praat + SciPy
- Typical analysis time
- ~1–3 s
- Accounts needed
- None
Everything your voice is telling you
Pitch & range
Note-by-note pitch tracking, lowest and highest notes, tessitura and a piano-roll view.
Stability & vibrato
Separates healthy vibrato from slow drift and irregular wobble, in cents.
Tone quality
Clarity, breathiness, brightness, roundness, thinness and resonance with the measurements behind them.
Pitch accuracy
Sing a guided exercise or your own target notes and see exactly which notes were sharp or flat.
Visual insight
Interactive waveform, spectrogram with pitch overlay, pitch contour and long-term spectrum.
Track progress
Save sessions, watch your scores evolve and compare any two recordings side by side.
How it works
- 1
Choose an exercise
Free singing, a sustained note, scales or your own melody.
- 2
Record or upload
Sing into your mic or drop in an audio file. Audio is converted in your browser.
- 3
Get your report
Scores, charts and tailored exercises in seconds — saved to your private history.
Honest by design
Voice quality is partly subjective. VocalTone keeps a clear line between what is measured and what is estimated, so you always know how much to trust each number.
Measured
Pitch, range, stability in cents, HNR, CPPS, jitter, shimmer and spectral ratios — standard acoustic measures.
Estimated
Roundness, brightness, breathiness and other timbre labels, and the overall score — transparent heuristics, labelled as estimates.
Scored only with a reference
Pitch accuracy is only scored when you sing known target notes. Free singing never gets a fake accuracy score.
Ready to hear what your voice can do?
It takes about 30 seconds. No sign-up required.
Analyze my voice