Hello!
Could you provide a detailed mockup and examples of the files/streams from other websites?
I can offer Python (Flask, Falcon, Django) or PHP (Lumen/Laravel, Phalcon) backend for users database, but I need more details about the data.
For the frontend I can use Bootstrap + jQuery UI, or another frameworks of your choice.
I have some experience with Icecast and audio streaming, so I think I can help you to make your task.
Regards, Jacob