How to generate captions for a video?

Here are some of the ways to generate captions for a video.

• You can generate captions through YouTube's Automatic Captioning which is absolutely free and very easy to use. The automatic captions generated can later be edited in the Video Manager.

• You can use IBM's Watson and Amara. They are also free soft wares to create effective captions.

• One more is the Pop-Up Archive. It is a paid service and has far more features than the above two options.