Voice & Lip-Sync
Generate realistic voiceovers and create lip-synced videos where characters speak your script with perfect mouth movements.
🎙️ Pro Feature: Voice & Lip-Sync requires a Pro or Studio subscription plan.
Overview
This feature combines text-to-speech AI with video lip-sync technology to create talking character videos. Choose from dozens of professional voices powered by DreamLabs and let the AI handle perfect lip synchronization.
The Voice & Lip-Sync Editor Interface
Here's what the Voice & Lip-Sync editor looks like and how each element works:
Understanding the Interface
Video Preview
Displays your selected video that will receive lip-sync animation. The video player shows the current frame and includes basic playback controls. You can remove and replace the video at any time using the "Remove Video" button.
Audio Section
Shows the current audio status. You can either generate audio using text-to-speech or upload your own audio file. Once audio is added, this section displays a waveform visualization and playback controls.
Text to Speech Tab
Generate professional voiceovers using AI. Select from dozens of voices, enter your script, and the AI creates natural-sounding speech perfectly synced to your video.
Choose from 50+ professional voices
Filter by gender and characteristics
Preview voices before selecting
Real-time character and duration counting
Upload Audio Tab
Use your own pre-recorded audio files for lip-syncing. Perfect for using professional voice actors, existing recordings, or custom audio productions. Supports MP3, WAV, and other common audio formats.
Voice Selection
Browse and preview available voices using the grid layout:
Gender Filters: Quickly filter voices by Male, Female, Other, or view All
Play Button: Click the play icon on any voice card to hear a sample
Voice Names: Each voice includes descriptive characteristics in its name
Create Lip-Sync Video Button
Once you've selected a video, chosen a voice, and entered your text, click this button to generate your lip-synced video. Processing typically takes 1-3 minutes depending on video length.
⚡ Requirements: Make sure you have a video selected, audio generated or uploaded, and sufficient tokens before generating.
Getting Started
1. Select or Upload a Video
Choose a video clip with a visible face/character. Best results come from:
Clear, frontal view of the face
Good lighting and resolution
Minimal head movement
5-30 seconds in length
2. Write Your Script
Enter the text you want the character to speak. The AI will:
Generate natural-sounding speech
Match lip movements to the audio
Preserve the original video quality
3. Choose a Voice
Select from our library of professional voices powered by DreamLabs:
Male voices: Various ages, accents, and tones
Female voices: Diverse range of characteristics
Character voices: Unique personalities and styles
4. Generate
Click generate and wait 1-3 minutes. The AI will produce a video with perfect lip-sync and audio.
Voice Selection
Voice Categories
Voices are organized by type:
Narration: Clear, authoritative voices for voiceovers
Conversational: Natural, friendly voices for dialogue
Character: Unique personalities for creative projects
Professional: Corporate and business-appropriate voices
Voice Attributes
Filter voices by:
Gender: Male, Female, Neutral
Age: Young, Middle-aged, Mature
Accent: American, British, Australian, etc.
Tone: Warm, Professional, Energetic, Calm
Preview Voices
Click the play button on any voice card to hear a sample before selecting.
Script Writing Tips
Natural Speech
Write how people actually talk
Use contractions (don't, can't, won't)
Include natural pauses with commas
Vary sentence length
Pronunciation
Use phonetic spelling for difficult words
Add periods for longer pauses
Use ALL CAPS sparingly for emphasis
Timing
Keep scripts under 300 characters for best results
Match script length to video duration
Leave room for natural pacing
Pro Tip: Read your script aloud before generating. If it sounds natural when you speak it, it will sound natural with AI voice.
Lip-Sync Quality
Factors Affecting Quality
Video Quality: Higher resolution = better sync
Face Visibility: Clear, unobstructed faces work best
Lighting: Well-lit faces improve accuracy
Head Position: Frontal angles are optimal
Supported Video Types
Real person videos
3D animated characters
2D illustrated characters
AI-generated character videos
Advanced Features
Voice Customization
Speed: Adjust speaking rate (0.5x to 2x)
Pitch: Make voice higher or lower
Emphasis: Highlight specific words
Multi-Character Dialogue
Create conversations by:
Generate voice for first character
Use video editing to combine clips
Alternate between different voices
Translation
Make your character speak different languages:
Write script in target language
Select voice with appropriate accent
Generate lip-sync for international content
Export Options
Audio Only
Download just the voice audio as:
MP3 - For podcasts, audiobooks
WAV - For professional audio editing
Video with Audio
Complete lip-synced video as:
MP4 - Standard video format
Original resolution preserved
Audio perfectly synchronized
Common Use Cases
Content Creation
YouTube videos with character narration
Educational content with animated teachers
Social media videos with branded characters
Marketing
Product demonstrations with spokesperson
Explainer videos
Video ads with custom voiceovers
Entertainment
Animated shorts
Character-driven stories
Meme videos with custom dialogue
Localization
Translate content to multiple languages
Create region-specific versions
Dubbing for international audiences
Troubleshooting
Lip-Sync Not Matching
Solution: Ensure face is clearly visible and well-lit. Use frontal face angles. Check video resolution.
Voice Sounds Robotic
Solution: Add punctuation for natural pacing. Use contractions. Try different voice selections.
Audio Quality Issues
Solution: Check source video audio. Ensure proper export settings. Try re-generating with different voice.
Processing Takes Too Long
Solution: Video length affects processing time. Break longer scripts into shorter segments.
Best Practices
Test voices with short scripts before committing to long projects
Use high-quality source videos for best lip-sync results
Write natural, conversational scripts
Match voice personality to character/brand
Keep videos under 30 seconds for optimal quality
Review and iterate - generate multiple versions if needed
Combine with video animation for dynamic results