title: How do I upload Audio+video as one to server?
body: <p>How to upload <a href="https://github.com/muaz-khan/RecordRTC" rel="nofollow">RecordRTC</a> based audio+video recordings to server in a single file format?</p>
  
  <p>RecordRTC seems generating two separate files: one for audio (as WAV) and another one for video (as WebM). How to upload both files simultaneously on a PHP server?</p>