Round up-Use of Sound

Today I have learnt about several things like diegetic sound which is sound that appears as though it is coming from within the story world of the film or TV programme. Non-diegetic sound which is sound that is clearly not coming from the within the story world. And finally that diegesis- is the 'story world'/world of the narrative. How real the diegesis appears is linked to the level of verisimilitude (Which means the appearance of being real)'.