I don’t read aloud, just silently in my head. If you really want to know how your story sounds, have someone else read it aloud. When you read your own work, you likely read it the way you intended it to sound. When someone else reads it, they have no clue how you intended it to sound, and they read it as it’s actually written.
It can be rather traumatic to have others read your work aloud, but it can teach things you won’t learn any other way.