Online Synth: Web Browser Synthesizer with Live Gestures
Discover the sonic power of a studio-grade polyphonic synthesizer running entirely in your browser. Play lush Warm Pads, searing Bright Saw leads, and punchy Square waves with hand-controlled lowpass filter sweeps and volume modulation.
How Hand Gesture Tracking Works
Tunevate uses your device’s webcam and client-side computer vision to track 21 hand landmarks in 3D space with sub-millisecond precision. Here is how your hands shape chords, melodies, and sound parameters:
Oscillator Pitch & Chord Degrees
Raise 1 to 5 fingers on your left hand to select the root frequency within the selected musical scale. Tilt your wrist to select major or minor chord voicing.
Voicing Extensions & Inversions
Shape the thickness of your synth patch: 1 finger provides tight fundamental chords, 2 fingers plays 1st inversions, and 3 fingers stacks lush 7th harmonics.
Dynamic Filter Sweeps & Resonant Swells
Rotate and tilt your right wrist to open and close the lowpass filter cutoff. Raise and lower your hands to control output level and room saturation.
Built for Real-Time Music Creation
Engineered with Tone.js, Web Audio API, and MediaPipe AI for professional synthesis, responsive acoustic instruments, and seamless loop recording.
Warm Pad Voice
3-sawtooth unison oscillator with 24-cent stereo detune and gentle attack envelope for celestial ambient chords.
Bright Saw Voice
Dual-sawtooth wave with snappy transient response and open 6500 Hz cutoff ceiling for cutting EDM and synthwave hooks.
Square Lead Voice
Classic vintage pulse-wave oscillator delivering chiptune, funk, and retro lead synth textures with rich odd harmonics.
State-Variable Lowpass Filter
Continuous 12 dB/octave analog-style filtering dynamically modulated by wrist tilt angle in real time.
Integrated Loop Recording
Record complex synth arpeggios and chord pads directly into the multitrack looper without leaving the browser.
Zero Setup & Total Privacy
Runs entirely client-side via Tone.js and WebAudio. Zero plugins, zero MIDI cables, and zero data uploads.
Audio & Machine Learning Architecture
| Synthesis Engine | Subtractive Polyphonic Oscillator Array (Tone.PolySynth) |
| Available Synth Presets | Warm Pad (3x Saw), Bright Saw (2x Saw), Square Lead (Pulse) |
| Filter Section | Real-time Lowpass Filter (Dynamic Hz linked to wrist tilt) |
| Envelope Stages | Attack, Decay, Sustain, Release (ADSR configured per voice) |
| Latency | Ultra-low buffer latency (< 20ms total acoustic response) |
Frequently Asked Questions
Everything you need to know about playing this instrument online with hand gestures.
What makes Tunevate's online synth unique?
Unlike traditional web synths that require clicking on small on-screen piano keys, Tunevate lets you play polyphonic synth chords and sweep lowpass filters organically in the air using computer vision hand tracking.
Can I save my synthesizer loops and performances?
Yes! Tunevate includes an integrated loop timeline that lets you record, overdub, and save your performance directly to a `.tvate` session file.
Is this online synthesizer completely free?
Yes, 100% free and open source. There are no subscriptions, ads, or locked features.