What does it mean to refer to the "voice" in a piece of literature

What does it mean to refer to the "voice" in a piece of literature

Voice is how the author expresses themselves in the story. Each author writes differently and tells the story in a unique way and can sometimes use literary devices in different ways to convey what they mean and evoke upon the audience the emotion they want to introduce. For example: one author may write "He was in his black suit getting ready for the funeral though he couldn't feel anything" while another may write "He decided to wear the black suit to assist the funeral. However, the more he thought about it the more perplexed he was as he realized that he felt nothing towards the person he loved" One author can sum up a situation while another does their best to describe the situation and emotion of the character in detail.

Quoting from Literary devices/voice it says: "Voice in literature is the individual style in which a certain author writes his or her works." Also, the devices they can use is "stylistic techniques, including syntax, semantics, diction, dialogue, character development, tone, pacing, and even punctuation"