The third-person omniscient narrator appears when the one who is telling the story knows the thoughts, opinions and feelings of all the characters who are in the story. This is the reason why the story that Ben is reading is narrated by a third-person omniscient narrator.
I believe that “chat” is stressed/accented and “el” is unstressed. Similar to the word “present,” where emphasis/accent is placed on “pres.” Hope this helps!