{"id":48521159,"url":"https://github.com/madebysan/neo-theremin","last_synced_at":"2026-04-07T21:01:34.314Z","repository":{"id":345164834,"uuid":"1182736094","full_name":"madebysan/neo-theremin","owner":"madebysan","description":"A browser-based gesture synthesis instrument using webcam hand tracking and Web Audio","archived":false,"fork":false,"pushed_at":"2026-03-17T23:27:26.000Z","size":2268,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2026-03-18T13:27:48.471Z","etag":null,"topics":["gesture-control","mediapipe","react","theremin","vite","web-audio"],"latest_commit_sha":null,"homepage":"https://neo-theremin.vercel.app","language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/madebysan.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2026-03-15T22:39:35.000Z","updated_at":"2026-03-17T23:27:29.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/madebysan/neo-theremin","commit_stats":null,"previous_names":["madebysan/neo-theremin"],"tags_count":null,"template":false,"template_full_name":null,"purl":"pkg:github/madebysan/neo-theremin","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/madebysan%2Fneo-theremin","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/madebysan%2Fneo-theremin/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/madebysan%2Fneo-theremin/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/madebysan%2Fneo-theremin/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/madebysan","download_url":"https://codeload.github.com/madebysan/neo-theremin/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/madebysan%2Fneo-theremin/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":31528751,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-07T16:28:08.000Z","status":"ssl_error","status_checked_at":"2026-04-07T16:28:06.951Z","response_time":105,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["gesture-control","mediapipe","react","theremin","vite","web-audio"],"created_at":"2026-04-07T21:01:08.079Z","updated_at":"2026-04-07T21:01:34.299Z","avatar_url":"https://github.com/madebysan.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"\u003ch1 align=\"center\"\u003eNeo Theremin\u003c/h1\u003e\n\u003cp align=\"center\"\u003eA browser-based gesture synthesis instrument.\u003cbr\u003e\nUse your webcam to track hand movements and control sound in real time.\u003c/p\u003e\n\u003cp align=\"center\"\u003e\u003ca href=\"https://neo-theremin.vercel.app\"\u003e\u003cstrong\u003eTry it live →\u003c/strong\u003e\u003c/a\u003e\u003c/p\u003e\n\n---\n\n\u003cimg src=\"public/theremin.gif\" alt=\"Neo Theremin in action\" width=\"100%\"\u003e\n\n## How It Works\n\nEach hand is an independent voice. Move your hands in front of the camera to play.\n\n### Controls\n\n| Input | Effect |\n|-------|--------|\n| **Thumb-Index distance** | Pitch (close = high, spread = low) |\n| **Hand height** | Volume (high = loud, low = quiet) |\n| **Open hand** | Play |\n| **Horns (index + pinky up)** | Sustain (holds volume, pitch still changes) |\n| **Fist** | Mute |\n| **Point (index only)** | Vibrato |\n| **Peace (index + middle)** | Filter sweep |\n| **Open mouth** | Siren effect |\n\n### Features\n\n- **Two independent voices** — each hand plays its own synth voice\n- **21 synth packs** — from Ethereal and Strings to Acid and Sci-Fi\n- **5 musical scales** — Major, Minor, Pentatonic, Blues, Chromatic\n- **Snap mode** — quantizes notes to the selected scale\n- **Reverb toggle** — adds convolution reverb\n- **Mouth detection** — triggers a rising siren tone\n- **EVA/NERV-inspired HUD** — scanlines, crosshairs, gesture labels, pitch/volume indicators\n- **Help modal** — in-app gesture reference\n\n## Tech Stack\n\n- **React** + **Vite**\n- **Tailwind CSS v4**\n- **MediaPipe Tasks Vision** — HandLandmarker (2 hands, 21 landmarks each) + FaceLandmarker (mouth detection)\n- **Web Audio API** — dual oscillators per voice, biquad filters, convolver reverb, wave shaper\n\n## Getting Started\n\n```bash\nnpm install --legacy-peer-deps\nnpm run dev\n```\n\nRequires a webcam and a modern browser (Chrome/Edge recommended for best MediaPipe GPU performance).\n\n## Project Structure\n\n```\nsrc/\n  App.jsx                    # Main app, camera setup, audio loop\n  index.css                  # CRT effects, scanlines, vignette\n  hooks/\n    useHandTracking.js       # MediaPipe hand + face detection\n    useTheremin.js           # Web Audio synth engine, 21 packs\n  components/\n    HandCanvas.jsx           # Canvas overlay with EVA-style HUD\n    Controls.jsx             # Synth pack selector, scale, toggles\n    HelpModal.jsx            # Gesture reference modal\n    Onboarding.jsx           # Start screen + loading\n```\n\n## Deployment\n\nDeployed on Vercel at [neo-theremin.vercel.app](https://neo-theremin.vercel.app).\n\n```bash\nvercel --prod\n```\n\n## Feedback\n\nFound a bug or have a feature idea? [Open an issue](https://github.com/madebysan/neo-theremin/issues).\n\n## License\n\n[MIT](LICENSE)\n\n---\n\nMade by [santiagoalonso.com](https://santiagoalonso.com)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmadebysan%2Fneo-theremin","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmadebysan%2Fneo-theremin","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmadebysan%2Fneo-theremin/lists"}