How to Export MP4 Voice Dubs & Build Custom .zip Dub Packs
Everything on ChoicerVoicerHub runs locally in your browser—from waveform trimming to MP4 video assembly—so your recordings stay on your device.
1. Trimming Takes Before Exporting
After recording a line, drag the waveform start and end handles to cut dead air, mouse clicks, or breath noise. Tightening your trim markers keeps pacing snappy when multiple characters trade dialogue.
2. Local FFmpeg WebAssembly MP4 Rendering
When you click Export MP4, ChoicerVoicerHub uses client-side FFmpeg WebAssembly to mux your trimmed audio takes with the scene cards into a shareable MP4 file—no account or cloud upload queue required.
3. Writing Your Own Scripts with Pack Maker (.zip)
Want to voice an original comedy skit, anime parody, or classroom roleplay? Open Pack Maker to define custom character names, line prompts, and export a reusable .zip pack you can share with friends in Multiplayer Party Mode.