🤖 Script to Video với AI Avatars
Tạo professional videos với AI presenters - không cần camera hay studio.
AI Avatar Tools
| Tool | Avatars | Languages | Starting Price |
|---|---|---|---|
| 🎬 Synthesia | 140+ | 120+ | $22/mo |
| 👤 HeyGen | 100+ | 40+ | $24/mo |
| 🖼️ D-ID | Custom face | 25+ | $6/mo |
| 🎭 Colossyan | 50+ | 70+ | $25/mo |
When to Use AI Avatars
✅ Training & onboarding videos
✅ Product explainers
✅ Multi-language content
✅ Consistent spokesperson
✅ Quick updates/announcements
✅ Internal communications
⚠️ Less suitable for:
- Personal brand content
- Emotional storytelling
- High-stakes presentations
Synthesia Walkthrough
🚀 Getting Started
- Sign up tại synthesia.io
- Choose plan
- Start new video
- Select avatar & background
📋 Create Video Steps
1. SELECT AVATAR
- Browse library
- Filter by gender, style
- Preview voice
2. WRITE SCRIPT
- Type or paste text
- Break into slides
- Add pauses:
[pause]
3. CHOOSE BACKGROUND
- Preset backgrounds
- Upload custom
- Or use templates
4. CUSTOMIZE
- Add text overlays
- Insert images/videos
- Brand colors
5. GENERATE
- Click "Generate"
- Wait 5-10 minutes
- Download/share
✍️ Script Writing Tips
Viết script cho AI avatar:
- 📏 Ngắn gọn: 1-2 phút mỗi video
- 💬 Conversational tone
- 🚫 Avoid jargon
- ✂️ Break thành short sentences
- ⏸️ Use
[pause]cho natural flow
❌ Bad: "We provide comprehensive solutions for enterprise-level digital transformation"
✅ Good: "We help big companies go digital. [pause] Here's how we do it."
HeyGen Features
✨ Unique Features
- 📸 Instant Avatar: Create từ 1 photo
- 🎙️ Voice Cloning: Clone your voice
- 🖼️ Talking Photo: Animate any photo
- 🎨 Templates: Pre-made video templates
📸 Instant Avatar
- 📤 Upload 1-2 minute video của yourself
- 🤖 AI creates your avatar
- ✍️ Type script
- 🎙️ Your avatar speaks
- 📈 Scale yourself!
🎙️ Voice Cloning
- 🎤 Record 2+ minutes of speech
- 🤖 AI clones your voice
- ✍️ Type any text
- 🔊 Your voice speaks it
Best Practices
📝 Script Format
[SLIDE 1] Welcome to [Company Name]. [pause] Today, I'll show you how to get started with our platform.
[SLIDE 2] First, let's create your account. Click the "Sign Up" button in the top right corner. [pause] Enter your email and create a password.
[SLIDE 3] Great! Now you're ready to explore. [pause] Let's look at the main features.
🎨 Visual Layout
🔲 Top-left: Logo
👤 Center/Right: Avatar
💬 Bottom: Text Overlay (key points)
🔘 End slide: CTA
🎭 Making Avatars Natural
- 💬 Script conversationally - Viết như đang nói
- ⏸️ Use pauses -
[pause]cho breathing room - ✂️ Short sentences - Dễ nghe hơn
- 🎨 Vary slides - Different backgrounds
- 🎬 Add B-roll - Break up talking head
- 🎵 Background music - Low, subtle
Multi-Language Content
🌍 Workflow
- ✍️ Create script in Vietnamese
- 🎬 Generate video
- 🔄 Translate script (AI)
- 🇬🇧 Generate English version (same avatar)
- 🇯🇵 Generate Japanese version ... scale to any language!
🔄 Translation Prompt
"Translate this video script to [language]:
- Keep tone conversational
- Adapt cultural references
- Similar length (for timing)
- Natural for spoken delivery
[paste script]"
Integration Workflow
🎓 Training Video Pipeline
📋 CONTENT - SME provides info ↓ ✍️ SCRIPT - AI writes script (ChatGPT) ↓ 👤 AVATAR - Generate với Synthesia ↓ ✂️ EDIT - Add graphics, captions ↓ 🌍 TRANSLATE - Multi-language versions ↓ 📤 PUBLISH - LMS or video platform
📦 Product Demo Pipeline
📋 FEATURES - List key features ↓ ✍️ SCRIPT - AI + human refinement ↓ 🖥️ SCREEN RECORD - Record product UI ↓ 👤 AVATAR - Intro/outro with avatar ↓ 🎬 COMBINE - Avatar + screen recording ↓ 📤 EXPORT
Quality Checklist
☑️ Script sounds natural when read aloud?
☑️ Avatar lip-sync looks good?
☑️ Pauses feel natural?
☑️ Text overlays readable?
☑️ Audio quality clear?
☑️ Branding consistent?
☑️ CTA clear at end?
☑️ Length appropriate?
Limitations
- 😐 Uncanny valley: Some avatars look "off"
- 🎭 Limited expressions: Less emotional range
- 🔤 Complex pronunciation: Struggles với technical terms
- 🧍 Movement: Upper body only
- ⏰ Real-time: Cannot do live/interactive
Cost Optimization
💰 Write perfect script before generating
👁️ Use free previews extensively
📦 Batch create videos
♻️ Reuse intro/outro segments
📋 Create templates
Bài Tập
- 📝 Sign up Synthesia/HeyGen (free trial)
- ✍️ Write 1-minute script
- 🎬 Generate test video
- 📝 Get feedback, iterate
- ✨ Create polished final version
Tiếp theo: Bài 9 - Podcasting with AI