A sentence that reads well silently may be hard to follow aloud. Break long sentences into short ideas, use punctuation to signal pauses, and replace visual references such as “see above” with words that make sense in audio.
Expand ambiguous abbreviations on first use. Check how the voice reads dates, numbers, URLs, and names; phonetic spellings may help in a narration copy. Preview the result with text to speech, then listen without looking at the text. If you lose the thread, simplify the wording or add a pause.
Keep headings meaningful so listeners can tell when the subject changes.