Provide text transcripts
Transcripts are similar to captions and represent a text version of a video or audio but usually go underneath it as a separate resource. Plus, you can translate transcripts and present them in as many languages as your audience may need. From an accessibility perspective, they allow users with hearing impairments to enjoy video content as much as other people do.
The best practice of transcripts is to highlight each word the speaker pronounces so that users can keep up with the speech. However, transcripts are also beneficial for all people. For example, they allow users to consume the content at their own pace and make notes without time limits.
Pro Tip: Transcripts can drive your site SEO. They enable search engines to examine text representation of video content in greater depth and include many secondary and tertiary keyword phrases.

