How to Use AI Lip Sync: Step-by-Step Creator Guide
Follow this simple 4-step workflow to synchronize any video speaker with new vocal audio. Master input file preparation, lighting tips, and rendering options for flawless lip-sync results.
Audio-Driven Viseme & Lip Sync Pipeline
Sub-frame acoustic spectral matching with automatic phoneme alignment.
Step 1: Upload Your Target Video or Photo
Selecting Clear Source Footage
Begin by selecting a video clip or portrait photo featuring a clear view of the speaker face. For optimal neural alignment, choose footage where the speaker is facing forward under even studio lighting.
LipSync.pro supports MP4, MOV, WEBM video formats as well as PNG, JPG, and WEBM images up to 1080p resolution.
- Ensure the speaker mouth is unobstructed by hands, microphones, or extreme tilt.
- Avoid heavy motion blur or rapid camera zooms during speaking scenes.
Step 2: Add Vocal Audio or Type Text
Audio Input Options
Upload your pre-recorded audio track (MP3, WAV, M4A) containing clean speech. Alternatively, use our Text-to-Speech (TTS) engine to generate natural AI voices across 40+ languages.
For best accuracy, ensure the audio track has minimal background music or loud ambient noise.
Step 3: Choose Neural Engine Mode
Retalk vs. EMO Photo Mode
Select VideoRetalk for high-definition video-to-video lip replacement, or select EMO Photo Mode for dynamic head poses and expressive emotions generated from a single photo.
Step 4: Click Generate & Download HD Output
Fast Cloud Processing
Click the Generate button. Our cloud GPU cluster processes your video in seconds, aligning every phoneme with precision. Preview the finished video directly in your browser and download in 1080p HD.
Explore Related AI Concepts & Capabilities
Related Guides & Reading
Frequently Asked Questions
How long does it take to render a lip sync video?
Most 10 to 30 second video clips are processed within 15 to 45 seconds on our cloud GPUs.
Can I upload videos with multiple speakers?
Our model automatically detects the primary forward-facing face in the frame and applies lip sync to the main speaker.
Ready to create realistic AI Lip Sync videos?
Experience automatic phoneme alignment, audio-driven lip synchronization, and crisp HD output without downloading any software.