Will there be any changes in existing rankings on website ??
Currently, Google's SEO (Search Engine Optimisation) algorithm largely depends on written content. However, with increasing video content and audio searches, Google might soon come up with an audio search-based SEO algorithm. Currently, video SEO is highly dependent on the tags, or descriptions being written along with the videos. However, in time, Google may start ranking videos based on their voice/video quality, similar to what it does to the written content.