I took a look at the code on your profile. You want to change
I found an article which describes how to use the audio tag.
In short, it looks like you need the 2 attributes for each source tag inside your audio tag; 'src' which specifies the source (either url or file) and 'type' which specifies the file type.
<audio controls autoplay>
<source src='audioFile.mp3' type='audio/mpeg'>
<source src='audioFile.ogg' type='audio/ogg'>