That's an interesting request! Yes, it is possible to play a sound or MP3 when new orders come in, although Magento doesn't support it right away. You would probably have to make a small custom module or utilise a browser-based solution that checks the status of an order using an API and plays a sound on your computer. You could also use a simple JavaScript code on the admin dashboard to check for new orders.
If the notification sound isn't clear or the speaker sounds muffled, it might be a hardware issue. I recommend using a free tool like fixmyspeaker great for removing dust or water and restoring clean audio.
