Is your target audience multilingual? Perhaps they are heading impaired? This fact shouldn’t prevent you from taking advantage of the benefits of video.
YouTube makes it easy to add captions to your video. The easiest way to do this is to create a caption file which includes the text of what was said in the video and time codes for when captions should display. Here are some examples of formats that YouTube supports.
Once you’ve created the caption file, visit this site to see how to add the caption file to your video. YouTube’s translation option will then allow users to choose the language they would like the captions to be in when they view the video.