video-translate

Translate and dub existing videos into multiple languages, preserving lip-sync and natural speech patterns. Provide a video URL or HeyGen video ID — no need to create the video on HeyGen first. All requests require the X-Api-Key header. Set the HEYGEN_API_KEY environment variable. Either video_url or video_id must be provided. For more control over translation: Translations take longer than standard video generation — allow up to 30 minutes. Translate to multiple languages in parallel: Common errors and how to handle them: - Provide a video URL or HeyGen video ID - Call POST /v2/video_translate with the target language - Poll GET /v2/video_translate/{translate_id} until status is completed - Download the translated video from the returned URL - Lip Sync — Automatically adjusts speaker's lip movements to match translated audio - Voice Cloning — Translated audio matches the original speaker's voice characteristics - Music Track Control — Optionally remove background music with disable_music_track: true - Speech Enhancement — Improve audio quality with enable_speech_enhancement: true - Source quality matters — Use high-quality source videos for better results - Clear audio — Videos with clear speech translate better - Single speaker — Best results with single-speaker content - Moderate pacing — Very fast speech may affect quality - Test first — Try with shorter clips before...