Formant Visualizer
Watch pitch, F₁ and F₂ in real time. Harmonic bars light up green when they land on a formant hill — fade to gray when they fall off it.
Vowel Modification Atlas
A visual reference for vowel tuning, target shapes, and high-note adjustments. Pick a vowel, see its formants, hear how it should sit.
Vowel Modification Practice
An English line, a direction prompt, and your job is to pick the IPA target. Spaced repetition tracks what you've learned and brings back what you haven't.
Breath Trainer
Pick a comfortable note. Hold it steady. The plasma reads your pitch and volume in real time, and your previous attempts race alongside as ghost runners — beat your time, lock in sustained release.
Vocal Tract
A physical model of the larynx and vocal tract. Drag the tongue to shape vowels, touch the tract to articulate consonants, play the keyboard to set pitch.
Shape Estimator
Sing a vowel and the lab places you on the F₁×F₂ vowel space — see which IPA neighborhood your resonance strategy lives in, and how it shifts when you modify.
VTP Exploration
How does the shape of your mouth change your sound? A guided walkthrough of vocal tract profiles — different cavities, different timbres, side by side.
Quality Identifier
Ear training for vocal quality. Listen to clips from real songs and place them on the chest → mix → head → falsetto axis. Sharpen your ear before you sharpen your sound.
Vocal Benchmark
A five-minute measurement of your voice across range, breath, pitch lock, tone, resonance, and vibrato. Every session writes a dated profile so you can track changes over time.