Over the past year we’ve known that Google now uses speech to text conversion. That means that they take the SPOKEN text from videos, and convert it to text.
While they won’t tell us WHY they do that, the obvious answer is that they are looking for RELEVANT CONTENT. They now use your spoken text to categorize and rank your video.
So we’ve been experimenting a bit, and we’ve discovered that in most cases you can improve your Google ranking with your websites by adding keywords in your spoken audio.
Note – Google actually publishes information about their ranking algorithm on their website. You can read it for yourself at http://www.google.com/technology/.
TIP: Remember to place your main keywords up front, and use them throughout the video. Use them in a organic or natural way, but write your script just as if you were writing a web page that you want Google to index, because with their speech to text conversion, they are applying the same algorithms as if it were just written text.
CAUTION – Just using music behind written text in a slide show does not work as well.