This is a known issue with Internet Explorer, and you can do one of two things
1. either bind the event handler to load the file meta separately before loading the audio file
2. create an if statement to use a different code when the visitor is on IE.. you can check here for reference
https://msdn.microsoft.com/en-us/ie/ff975061(v=vs.94)#MainContent
Hello Everyone,
I'm Scott, I've been working in web development for quiet some time now, and just decided to freelance this month, wishing you all the best of luck and looking forward to come out with some good friendships from here