Craft Lip Sync

Overview

Craft Lip Sync (formerly Video Craft Pro) is a professional lip-sync video generation feature that creates videos where actors' lips are perfectly synchronized with your custom audio. This feature is ideal for creating talking head videos, presentations, tutorials, and any content where precise lip synchronization is important.

When to Use Craft Lip Sync

Talking Head Videos: Create videos with actors speaking your script
Tutorials: Generate tutorial videos with synchronized speech
Presentations: Create presentation videos with custom voice
Marketing Content: Produce marketing videos with professional lip sync
Custom Voice Content: Use your own audio files for complete control

Step-by-Step Guide

Step 1: Select Actor (Required)

Navigate to Custom Mode:
- Click on "Craft Lip Sync" card from the dashboard (or Video Craft Pro)
Choose an Actor:
- In the "Step 1: Select Actor" section, you'll see several tabs:
  - Actors Tab (default): Browse pre-generated actor images
  - Upload Tab: Upload your own actor image
  - Generate Tab: Generate a new actor image using AI
  - History Tab: Select from your previous generations
Select Your Actor:
- Click on any actor image from the Actors tab, or
- Upload an image from the Upload tab, or
- Generate a new actor from the Generate tab, or
- Choose a previous generation from the History tab
Preview: The selected actor will appear in the preview canvas
Zoom Controls: Use zoom controls to inspect the actor image

Note: The selected actor image is required before you can proceed.

Step 2: Voice & Audio (Required)

The Voice & Audio section is collapsible - click the header to expand/collapse it.

Upload Audio File

Voice Selector Component:
- The Voice Selector allows you to upload your own audio file
- Supported formats: MP3, WAV, M4A, and other common audio formats
- Required: An audio file is required for lip sync generation
Upload Process:
- Click in the upload area or drag and drop an audio file
- File will upload to the platform
- Audio duration determines video duration automatically
Audio Requirements:
- Format: Common audio formats (MP3, WAV, M4A, etc.)
- Quality: Higher quality audio produces better lip sync
- Duration: Video duration matches audio duration automatically
- Content: Audio should contain clear speech for best results

Tips for Audio:

Use clear, high-quality audio recordings
Ensure speech is clear and not too fast
Remove background noise if possible
Test audio playback before uploading

Step 3: Behavior - Action Prompt (Required)

Action Prompt Field:
- In the "Behavior" section, find the "Action Prompt" field
- Required: This field must be filled
- Purpose: Describe how the actor should behave and move while speaking
Writing Action Prompts:
- Be Specific: Describe body language, gestures, and expressions
- Natural Movements: Use phrases like "natural hand gestures", "maintaining eye contact"
- Emotional Cues: Include emotions like "warm smile", "confident demeanor"
- Body Language: Describe how the actor should move

Example Action Prompts:

"Speaking confidently with a warm smile, making natural hand gestures, maintaining eye contact with the camera"
"Professional presentation style, subtle hand movements, confident posture, maintaining eye contact"
"Enthusiastic and engaging, animated gestures, expressive facial expressions, friendly demeanor"

Tips:

Match the action to the content of your audio
Be specific about gestures and expressions
Consider the tone of your audio when writing actions

Negative Prompt (Optional)

Negative Prompt Field:
- Below the Action Prompt, you'll find the "Negative Prompt" field
- Optional: This field is not required
- Purpose: Describe what you want to avoid in the video
Writing Negative Prompts:
- Common Issues: Mention things like "unnatural movements", "blurry scenes", "distorted faces"
- Quality Issues: Include terms like "poor lighting", "awkward gestures", "jerky movements"
- Help Refine: Helps improve the overall quality of the output

Example Negative Prompts:

"unnatural movements, blurry scenes, distorted faces, poor lighting"
"awkward gestures, jerky movements, unnatural expressions, distorted audio sync"

Note: Negative prompts help refine output but are optional.

Content Safety

NSFW Filter: The system includes safety filters to prevent inappropriate content
Action Prompt: Filters check the action prompt for inappropriate content
Negative Prompt: Filters also check the negative prompt
Validation: If inappropriate content is detected, generation will be blocked with an error message
Error Message: "Your input contains content that violates our community guidelines. Please revise your prompt to comply with our content policy."

Step 4: Settings

Resolution

Options: Various resolution options available (HD, FHD, etc.)
Selection: Use the dropdown to select your preferred resolution
Cost Impact: Higher resolutions may cost more credits
Recommendation: Choose based on your target platform and quality needs

Resolution Options:

HD: Standard HD resolution (good for most use cases)
FHD: Full HD resolution (higher quality)
Higher Resolutions: Additional options may be available

Duration

Auto-Determined: Duration is automatically determined by your audio file length
Cannot Set Manually: You cannot manually set duration - it matches your audio
Display: Video duration will match the audio file duration exactly

Step 5: Organize Asset (Optional)

Tags: Add tags to help organize this video in your history
Tag Selector: Click on the tag dropdown to select existing tags or create new ones

Step 6: Generate Video

Check Credits:
- Credit cost varies based on resolution and duration
- Base cost: 20 credits (1 minute, HD)
- Longer videos or higher resolutions cost more
- Check the cost displayed on the Generate button
Validation:
- Actor is selected (required)
- Audio file is uploaded (required)
- Action prompt is filled (required)
- No inappropriate content detected
Click Generate:
- Click the "Generate Video" button
- Credits are deducted immediately
- The preview canvas will show a loading animation with progress
Wait for Generation:
- Generation time varies based on video duration and resolution
- Progress indicator shows generation progress
- You can wait on the page or navigate away
- The page will automatically update when complete
- You'll receive an email notification if enabled

Step 7: View Your Video

Video Display:
- Once complete, the video automatically appears in the preview canvas
- Video will show the actor with synchronized lip movements
- Video controls are available (play, pause, volume)
Download:
- Use the download button to save the video to your computer
- Video is in MP4 format with perfect lip synchronization

Credit Costs

Craft Lip Sync uses variable pricing:

Base Cost: 20 credits (1 minute, HD resolution)
Duration: Longer videos cost more (30 seconds ≈ 15 credits, 2 minutes ≈ 40 credits)
Resolution: Higher resolutions may cost more
Calculation: Cost is calculated based on duration and resolution

Example Costs:

30 seconds, HD: ~15 credits
1 minute, HD: 20 credits
2 minutes, HD: ~40 credits
Higher resolutions: Additional cost

Tips for Best Results

Audio Quality

Clear Speech: Use clear, well-recorded audio
Good Quality: Higher quality audio produces better lip sync
Appropriate Length: Match audio length to your needs (video duration = audio duration)
Remove Noise: Clean up background noise if possible

Action Prompts

Match Audio Tone: Write actions that match the tone of your audio
Be Specific: Describe gestures and expressions clearly
Natural Movements: Focus on natural, believable movements
Professional Style: For professional content, use professional action descriptions

Actor Selection

Clear Face: Choose actors with clearly visible faces
Appropriate Style: Match actor style to your content (professional, casual, etc.)
High Quality: Use high-quality actor images for best results

Resolution Selection

HD: Good for most use cases, faster generation
FHD: Best for professional content, higher quality
Platform Consideration: Choose resolution based on your target platform

What to Expect

Generation Time

Varies by Duration: Longer videos take longer to generate
HD, 1 minute: Approximately 5-10 minutes
HD, 2 minutes: Approximately 10-15 minutes
Progress Indicator: Shows generation progress percentage
May Vary: Based on server load and resolution

Video Quality

Perfect Lip Sync: Precise synchronization between audio and lip movements
Professional Output: High-quality videos suitable for professional use
Natural Movements: Natural-looking facial expressions and movements
Smooth Playback: Professional video quality with smooth playback

File Format

Format: MP4 (standard video format)
Compatible: Works with all major video players and platforms
Ready to Use: Can be directly uploaded to any platform

Troubleshooting

Generation Failed

Check Credits: Ensure you have enough credits for your video duration and resolution
Check Requirements: Ensure actor, audio, and action prompt are all provided
Content Safety: If blocked, check for inappropriate content in prompts
Try Again: Sometimes temporary issues occur
Refund: Credits are automatically refunded if generation fails

Content Safety Error

Error Message: "Your input contains content that violates our community guidelines"
Solution: Revise your action prompt or negative prompt to remove inappropriate content
Check Both Fields: Both action prompt and negative prompt are checked
Guidelines: Ensure content complies with community guidelines

Audio Upload Issues

Format: Ensure audio is in a supported format (MP3, WAV, M4A, etc.)
File Size: Check that file size is within limits
Upload: Try uploading again if upload fails
Quality: Use good quality audio files

Lip Sync Quality Issues

Audio Quality: Ensure audio is clear and high quality
Speech Clarity: Clear, well-enunciated speech works best
Actor Selection: Choose actors with clearly visible faces
Resolution: Try higher resolution for better quality

Credit Issues

Check Balance: Verify your credit balance
Review Costs: Understand that Craft Lip Sync costs more than Quick Video
Duration Impact: Longer videos cost more credits
Purchase Credits: Buy more credits if needed

Examples

Example 1: Tutorial Video (1 minute, HD)

Actor: Professional presenter from Actors tab Audio: 1-minute tutorial script recording Action Prompt: "Speaking clearly with a friendly demeanor, making explanatory hand gestures, maintaining eye contact, using a teaching style presentation" Negative Prompt: "unnatural movements, blurry scenes, awkward gestures" Resolution: HD Duration: 1 minute (auto-determined from audio) Result: Professional tutorial video with perfect lip synchronization

Example 2: Marketing Video (30 seconds, FHD)

Actor: Business professional from Actors tab Audio: 30-second marketing script recording Action Prompt: "Confident and enthusiastic presentation style, natural hand gestures, warm smile, maintaining eye contact, professional demeanor" Resolution: FHD Duration: 30 seconds (auto-determined from audio) Result: High-quality marketing video with professional lip sync

Next Steps

After creating your Craft Lip Sync video:

Download: Save your video
Review: Watch to verify lip sync quality
Edit: Use Video Editor to make additional edits if needed
Share: Upload to your preferred platform
Create More: Experiment with different actors and audio files

Quick Video: Fast video generation with text-to-speech
Premium Video: Advanced video generation with more control
Video Editor: Edit and enhance your generated videos
Credit Costs: Understand credit costs and pricing
History: View and manage your video generations