Do on-page video transcripts dilute keyword targeting?

[scherkin1]

We're considering putting video transcripts in collapsable div tags or using jquery on our actual video page. Videos range from 3 minutes to 12 minutes. For some of the longer videos, is there a chance that having the transcript on-page will dilute the value of our targeted keywords? Or is it the opposite?

We just want to make sure we're properly optimizing for SEO/search visibility and not over-optimizing for the sake of it.

[irvingw]

We do this. It depends on the content of the transcript. If it's a person speaking about something it's going to flow naturally unlike a stuffed SEO paragraph. If it's related to the page it will help because of extra content and long tail keyword possibilities even if the main keyword isn't in the content.

Don't be concerned about keyword density as long as you are addressing the keywords on the main page content. It's real content for the user and the engines, also handicap friendly for the hearing impared.