Vocal Trainer

A browser-based vocal warm-up tool. Pick a scale pattern, set a key, and run arpeggios up and down your range while a metronome keeps you on time.

Built with vanilla TypeScript, Web Audio API, and Vite. No frameworks, no dependencies at runtime.

Features

• 13 chromatic interval toggles (root to octave) with preset scales and triads
• Four arpeggio directions: up, down, up & down, down & up
• Tempo and subdivision control
• Single play (one run) and auto-play (steps up then down by half-step across a configurable range)
• 4-beat metronome countdown before each run

Development

pnpm install
pnpm dev

Build

pnpm build

Deployed to GitHub Pages at /vocal-trainer/ on every push to main.