Thanks @ElianaC for your reply. I have went through the article and it is quite clear. I need to clarify my question. In my case, I have all the captions as text without timing I just need to sync between it and the video. I know I can do this manually as per the article but I think it will be very time-consuming. I'm looking for faster service, like the ability to attach a whole text to video, and automatically the engine, start generating the timing and attaching related text as it is sequential already. This way it will eliminate/decrease the manual timing process if done by me. I think this feature is available in Youtube Studio, as they allow uploading text transcripts, and they generate auto timing.
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