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This Chinese-language tutorial, uploaded on April 13, 2026, covers the presenter’s third-party VideoLingo 3.0.1 bundle, integrated with Index-TTS and added batch processing. The bundle and its launch steps are specific to that recording, rather than an official upstream installation guide. The presenter demonstrates translating an English video into Chinese, adding bilingual subtitles, then generating dubbed speech.
Setup starts with extracting the downloaded package and launching its browser interface. The presenter recommends completing one video before using batch mode. Translation uses a configured OpenAI-compatible API, which the interface can validate. Users select the source language and describe the target language in ordinary text. The first subtitle run also downloads a speech recognition model.
Index-TTS generates speech on the local computer. The tutorial explains reference-audio selection and an option to use voices from the source video for different speakers. The presenter describes the results as more natural than Microsoft's online speech option, while warning that local synthesis can take longer. This local AI workflow still uses an API for translation; the demonstration does not establish fully offline operation.
Batch processing reuses the interface settings and accepts a folder of videos, with dubbing optional. The presenter recommends downloaded files because repeated URL downloads may trigger bot verification and fail. Outputs go into folders named after each source video, with subtitled and dubbed results plus subtitle files.
