Script Writing Intermediate

The quality of your AI avatar video depends heavily on the script. AI voices handle conversational, clearly written text best. This lesson teaches you how to write scripts that sound natural when spoken by an AI avatar, control pronunciation and pacing, and structure multi-scene storyboards.

Writing for AI Voices

  • Write the way people speak, not the way they read - use contractions, short sentences
  • Keep sentences under 20 words for natural pacing
  • Avoid jargon unless the audience expects it
  • Use punctuation to control pauses: commas for short pauses, periods for full stops
  • Read your script aloud before generating - if it sounds awkward spoken, rewrite it

Pronunciation Control

AI voices sometimes mispronounce technical terms, brand names, or acronyms. HeyGen provides several tools to fix this:

TechniqueExampleWhen to Use
Phonetic spelling"Nginx" → "engine-ex"Brand names, technical terms
SSML breaks<break time="500ms"/>Add dramatic pauses
SSML emphasis<emphasis>important</emphasis>Stress key words

Multi-Scene Storyboarding

For longer videos, break content into scenes. Each scene can have a different background, avatar position, and visual layout. Plan your storyboard before scripting:

  1. Outline key messages

    List 3-5 main points your video must communicate.

  2. Map to scenes

    Assign each point to a scene with appropriate background visuals.

  3. Write per-scene scripts

    Keep each scene under 60 seconds for engagement.

  4. Add transitions

    Use transitional phrases between scenes for flow.

AI Script Assistant: Use ChatGPT or Claude to draft your initial script, then refine it for AI voice delivery. Prompt: "Write a 60-second script for an AI avatar video about [topic]. Use conversational tone, short sentences, and natural pacing."

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