A Chrome extension that controls Netflix and YouTube videos through speech commands. You can download it here
To use it, press Start Recording from the pop up (or ctrl/cmd + E) then say the any of the following commands:
"Play Video"
"Pause Video"
"Skip Video"
"Rewind Video"
We used Google's Web Speech API for recognizing speech and then controlled the playback using the HTMLMediaElement interface. This was the implementation for YouTube.
In the case of Netflix, we had to inject script tags into the DOM of the page to control the player.