How to translate and dub a video with your own voice
Pick a target language and generate your first AI dub pass in Dubbing Review.
Updated 2026-07-23 · AutoCast v3.0 · macOS 14+
Who this is for
Anyone who has finished recording (or editing) a video and wants to produce a dubbed version in another language, in their own cloned voice.
Before you start
A finished recording open in AutoCast, with audio (your voice narrating, or a script typed in with Post-record Narration).
Know which language you’re dubbing into — AutoCast supports English, Spanish, Japanese, Portuguese, Korean, and Chinese.
Steps
Open Dubbing Review. From your recording, click through to the dubbing step.
Choose a target language. Select one of the six supported languages from the language picker.
Confirm your voice. AutoCast uses the voice cloned from your own microphone recording. If you haven’t created a voice yet, AutoCast prompts you to record a short sample first — see Create and use your voice.
Generate the dub. AutoCast transcribes your original audio, translates it, and speaks each line in your cloned voice. This produces a first pass across every line in the video.
Let it finish. Generation runs line by line; longer videos take longer. Each line’s dub is timed to match your clicks and zooms in that section — see Why dubbing follows your clicks.
What you should see
Dubbing Review fills in with every line of your video: the original line shown small and dimmed above, and the translated, spoken line below it. Lines flagged “Too long” show an AI Shorten button.
Generation seems stuck — dubbing needs an internet connection for translation and voice synthesis; check your connection and retry.
A line sounds wrong or mistranslated — you don’t need to regenerate the whole video. Edit that single line directly in Dubbing Review — see Review and edit translations.