If an AI voice sounds technically correct but unnatural, the script is often the problem. Text written for reading is not automatically good for listening.
Write in speakable sentences
Split long sentences. Use one idea per sentence. Give numbers, transitions and product names room to breathe.
Control numbers and acronyms
Spell out how you want API, SaaS, 2026 or 10% to be read. Do not assume the model will choose the same pronunciation you expect.
Generate short tests first
Test the introduction, the most emotional section and the section with the most names or numbers. Confirm pacing before producing the full voiceover.
Finish with audio post-production
Normalize loudness, reduce noise, lower background music and adjust pauses. For short-form video, audio quality often affects retention more than visuals.