Here’s another nugget to examine. How do you suppose they make conversations and songs so clear when watching them in a movie, television, or on different shows? Need a hint? That’s right, voice-overs. What is a voice-over? I’m glad that you asked.
A voice-over is a production technique where a voice—that is not part of the narrative —is used in a radio, television production, filmmaking, theatre, or other presentations. The voice-over is read from a script and might be spoken by someone who appears elsewhere in the production or by a specialist voice talent. Wikipedia
Still not clear? When a film is being made, there are ambient noises that can be picked up in the audio that you have to remove. When you do that, you replace the narrations with a voice-over that an actor or voice specialist records in a studio. The specialists will read the script while watching the mouths of the actors in the film or show, and it is recorded and synced with other audio needed in the production.
There is a lot of work that goes into making a production audible and exciting. That’s why you shouldn’t rush the completion and release of a show. If it’s not done right, it will be noticed.
Let me hear from some of my voice-over specialists. You certainly are qualified to shine a brighter light on this subject.