Not only is this development amazing for those who are deaf (including my friend Christie) but there are also SEO implications. Here’s the announcement from the Google blog.
Here’s the summary:
You Tube now has autocaptioning using the same voice recognition algorithms in Google Voice to automatically generate captions for video. Machine generated captioning is not ideal, but with their auto-timing you can upload a simple text file with the transcript/script that you used to create the video and Google will figure out when the words are spoken and create captions for your video.
From an SEO perspective, this means that Google will have text that they can crawl to understand your videos, so when drafting your video script, keep your keyword strategy in mind. Having a text version of your video content will be great for optimizing your videos and reaching a larger audience.