PIXVERSE FEATURES
PixVerse Lip Sync v2 synchronizes mouth movements in videos with provided audio or text-to-speech, supporting multiple built-in voices or custom audio input.
Avg Run Time: 80.000s
Model Slug: pixverse-lip-sync-v2
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Example Result
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API & SDK
Create a Prediction
Send a POST request to create a new prediction. This will return a prediction ID that you'll use to check the result. The request should include your model inputs and API key.
Get Prediction Result
Poll the prediction endpoint with the prediction ID until the result is ready. The API uses long-polling, so you'll need to repeatedly check until you receive a success status.
Readme
Overview
PixVerse | Lip Sync v2 | Speech to Video Overview
PixVerse | Lip Sync v2 | Speech to Video is a specialized video-to-video AI model from Pixverse that synchronizes realistic mouth movements in input videos with provided audio or text-to-speech input, enabling lifelike talking head animations. This model solves the challenge of creating natural lip-sync for content creators needing dubbed or voiced videos without manual editing. Its primary differentiator is support for 15 built-in TTS voices like Harper, Ava, Isabella, Sophia, Emily, Chloe, Julia, Mason, Jack, Liam, James, Oliver, Adrian, Ethan, and Auto, plus custom audio uploads, setting it apart in the Pixverse family known for advanced video generation features like native audio sync.
Available through platforms like each::labs, PixVerse | Lip Sync v2 | Speech to Video integrates seamlessly into workflows for video production, offering Pixverse video-to-video capabilities with precise speech alignment. Whether animating characters or dubbing footage, it delivers high-fidelity results up to 1080p, making it ideal for professional and creative applications on eachlabs.ai.
Technical Specifications
Technical Specifications
- Resolution Support: Up to 1080p, including 360p, 540p, 720p options for flexible output quality.
- Max Duration: 1-15 seconds, configurable for short clips ideal for lip sync tasks.
- Aspect Ratios: 16:9 (widescreen), 9:16 (vertical), 1:1 (square), 4:3, and 21:9 (ultrawide).
- Input Formats: Video file for base footage, audio file or text with TTS voice selection; supports image-to-video extensions in Pixverse family.
- Output Formats: MP4 video with synchronized audio.
- Processing Time: Typically fast for short clips, with single-pass generation for efficiency.
- Audio Features: 15 TTS voices or custom upload, native audio sync.
These specs align with Pixverse's video-to-video advancements, ensuring compatibility across editing tools.
Key Considerations
Key Considerations
Before using PixVerse | Lip Sync v2 | Speech to Video, ensure your input video features a clear frontal face view for optimal mouth synchronization, as side profiles may reduce accuracy. This model excels in short-form content like social media reels or explainer videos, outperforming general text-to-video alternatives for precise lip movements. On each::labs, access the PixVerse | Lip Sync v2 | Speech to Video API for scalable integration, balancing high-quality 1080p outputs with quick processing times suitable for iterative workflows. Consider cost per generation for longer 15-second clips, prioritizing them for final polishes over drafts at lower resolutions.
Tips & Tricks
Tips and Tricks
For best results with PixVerse | Lip Sync v2 | Speech to Video, use clear, front-facing video inputs with neutral lighting to enhance lip detection and sync precision. Select TTS voices matching the character's tone—e.g., "Harper" for professional narration or "Mason" for energetic delivery—and keep speech concise to fit 15-second limits. Optimize prompts by describing emotion and pace: "Sync lips to energetic speech with subtle head nods."
Example prompts:
- "Lip sync this portrait to 'Hello, welcome to our product demo' using Sophia voice, natural smile."
- "Match mouth movements to uploaded audio of a story narration with Emily TTS, gentle eyebrow raises."
- "Synchronize video lips to 'Exciting news ahead!' in Jack voice, enthusiastic gestures."
Combine with Pixverse negative prompts like "blurry mouth, distorted face" to refine outputs. Test at 720p first for speed, then upscale.
Capabilities
Capabilities
- Synchronizes mouth movements in input videos with TTS audio from 15 voices or custom uploads for realistic speech animation.
- Supports video-to-video processing up to 1080p resolution and 15-second durations with native audio integration.
- Handles multiple aspect ratios including 16:9, 9:16 for social media and cinematic formats.
- Maintains facial consistency and emotion across frames during lip sync, reducing drift in talking heads.
- Enables prompt-driven enhancements like subtle expressions or head movements tied to speech.
- Outputs MP4 files ready for editing, with optional physics-realistic motion in Pixverse family extensions.
- Integrates Pixverse video-to-video API for automated workflows on each::labs.
What Can I Use It For?
Use Cases for PixVerse | Lip Sync v2 | Speech to Video
Content Creators: Animate static portraits into talking videos for TikTok reels. Example: Upload a headshot and prompt "Lip sync to 'Follow for daily tips!' using Ava voice"—leveraging 15-second duration and 9:16 aspect for viral shorts.
Marketers: Dub product demos in multiple languages without reshooting. Use custom audio upload for brand voice sync on 1080p footage, maintaining facial consistency for professional ads.
Developers: Build interactive avatars via PixVerse | Lip Sync v2 | Speech to Video API on each::labs. Input user video and TTS like "Welcome, user" with Oliver voice for app demos, scaling with precise lip alignment.
Designers: Create explainer animations with emotional delivery. Sync a character video to "Discover our new features" in Isabella TTS, adding prompt-driven nods for engaging motion graphics.
Things to Be Aware Of
Things to Be Aware Of
PixVerse | Lip Sync v2 | Speech to Video performs best with high-quality, frontal face inputs; low-light or occluded mouths lead to imperfect syncs. Users often overlook voice-pitch matching, causing unnatural results—test multiple TTS options like Ethan for deeper tones. Common mistakes include overly long audio exceeding 15 seconds, triggering truncation. Resource needs are moderate, but batch processing via each::labs API benefits from stable connections. Edge cases like fast speech or heavy accents may show minor lip lag, improvable with slower pacing prompts.
Limitations
Limitations
PixVerse | Lip Sync v2 | Speech to Video is constrained to 15-second clips and struggles with non-frontal faces or complex backgrounds, potentially causing sync artifacts. It lacks multi-speaker support, focusing on single-subject lip sync. Outputs may exhibit minor emotion drift in extended motion, and custom audio must be clean without noise. No real-time generation; processing suits pre-rendered content, not live streams.
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Pricing
Pricing Type: Dynamic
PixVerse Lip Sync v2. External audio: 4 credits/sec. TTS: 4 credits per 15 UTF-8 bytes. $1 = 200 credits.
Current Pricing
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