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https://github.com/heygen-com/hyperframes.git
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Miguel Ángel
07965e9fe9
* fix(studio): play preview audio at speeds above 1x
The player force-muted preview audio whenever playback rate exceeded 1x
and disabled the mute button (and the M shortcut) in that state. Users
changing speed to 2x heard nothing, and clicking unmute did nothing.
Media elements play audio fine at any rate (pitch preserved by default),
so remove the special case: audio now follows only the user's mute
toggle at every speed. Drops the shouldMutePreviewAudio helper and the
audioAutoMuted UI/keyboard gating that existed solely for it.
* test(studio): update seek audio test for unmuted-above-1x behavior
useTimelinePlayer.seek.test.ts still asserted the old force-mute: at 2x
with the user unmuted it expected a set-muted{muted:true} message. With
audio now following only the user's toggle, the preview receives
set-muted{muted:false}. Update the assertion and title to match.
@hyperframes/studio
Browser-based composition editor UI for Hyperframes. Provides a visual timeline, code editor, and live preview for building video compositions.
Install
npm install @hyperframes/studio
What it does
The studio is a React application with:
- Visual timeline — drag, resize, and arrange elements on tracks
- Code editor — edit HTML and GSAP scripts with CodeMirror (syntax highlighting, autocomplete)
- Live preview — see changes in real time as you edit
- Composition inspector — view and modify element properties
Development
The studio is embedded in the hyperframes preview command. To develop the studio UI itself:
cd packages/studio
bun run dev # Start Vite dev server
bun run build # Build for production
bun run typecheck # Type-check
Tech stack
- React 18/19, Zustand (state management)
- CodeMirror 6 (editor)
- Tailwind CSS (styling)
- Vite (bundler)
- Phosphor Icons
Documentation
Full documentation: hyperframes.heygen.com/packages/studio
Related packages
@hyperframes/core— types and parsers used by the editorhyperframes— CLI that serves the studio viahyperframes preview