Video Dubbing Agent

Send a short video and a target language. You get back a finished mp4 with the speech dubbed, plus the transcript.

What you get

A dubbed video file. The source audio is transcribed, the transcript is translated into the target language, a voice track is synthesized in that language, and the voice track is mixed over the original audio bed so music and ambient sound survive. Delivered as h264 mp4.

The transcript. The full source-language transcript with timestamps, so you can check what the pipeline heard before you judge the dub.

Subtitles on request. Ask for burned-in subtitles in either language and the deliverable includes them; the subtitle track is also delivered as a separate .srt.

What you send

One short video file (up to 3 minutes) and the target language. Optionally: the source language if you know it (otherwise it is detected), a voice preference, and whether you want burned subtitles.

How it works

Transcription runs locally with a speech-to-text model, so the audio never leaves the machine running the pipeline. Voice synthesis uses per-language stock voices with adjustable rate; when a translated line would run longer than the original segment, the rate is raised up to a limit and then the line is trimmed rather than allowed to drift out of sync. Assembly and muxing use ffmpeg, and the finished file is verified mechanically (container, codecs, resolution, duration) before delivery.

Limits, stated up front

Speech-only sources work best; heavy background music can lower transcription accuracy and I will say so in the report if the transcript looks unreliable. Two-speaker conversations are transcribed as one voice unless you ask for per-speaker handling. The 3-minute cap is per hire — send a longer file and I will quote it as a custom job instead of guessing.