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8+ Best Lip Sync Video APIs [2024]

Julia Szatar
September 1, 2024
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In our digital era, one of the best ways to reach a wider audience and grow your business is to embrace multilingualism. SEO statistics reveal that multilingual websites can reach 75% more internet users whose primary language is not English, and 60% of global consumers prefer to browse sites in their native language.

These statistics reveal just how powerful multilingualism can be as a business strategy. But what are you supposed to do if you and your team only speak one language? Inaccurate translations and badly dubbed videos certainly won’t help your brand. That’s where a top-rated lip sync video API can help.

What is a Lip Sync Video API?

AI technology has made video translation far more accessible, but when you’re investing in multilingual content, you want the final product to seem as natural and realistic as your original content.

Lip sync technology can make that happen. AI-powered lip sync synchronizes your translated audio with the lip movements of the person or avatar in your video. By matching audio and lip movements, you can avoid that “bad dubbing” effect and create a natural viewing experience.

But what is an API? Application programming interfaces (APIs) are collections of tools, guidelines, and protocols that facilitate communication between different types of software. Essentially, lip sync APIs allow developers to integrate the lip sync AI technology from one software platform into their own platforms or apps without having to create complex codes to integrate them.

How do Lip Sync Video APIs Work?

Lip sync video APIs utilize facial recognition algorithms and machine learning to understand lip movements and match them to translated audio.

With Tavus’ lip sync and dubbing APIs, you have two options for matching audio and video lip movements: In place lip sync and dubbing. In place lip sync allows you to watch your video and identify segments where the audio needs to be changed to match the lip movements. With dubbing, you can simply upload your video, choose a new target language, and let Tavus provide you with a dubbed video (via voice cloning), including lip movements to match the new voice!

Lip Sync Video API vs Traditional Lip Syncing

Traditional lip syncing, or manual synchronization, requires manual adjustment of lip movement timing to match your audio track. Editors who do manual sync need skilled attention to detail, and the process takes a significant amount of both time and effort.

Lip sync video APIs utilize auto synchronization, which involves software that relies on AI tools to analyze the audio track and generate lip movements to match. APIs like Tavus can work faster and do the job for you, saving you time and money.

Best Lip Sync Video APIs

Let’s explore the best lip sync video APIs on the market.

1. Tavus API

Powered by Tavus’s Hummingbird model, the Tavus lip sync and dubbing APIs allow users to edit scripts and dub videos in foreign languages. The model ensures lip movements match any given audio, creating a natural, seamless viewing experience. 

Developers can use the lip sync and dubbing APIs in a variety of ways, including editing talking-head videos, translating marketing and educational videos, and personalizing videos with specified variables. All you have to do is upload your video, choose a target language, and Tavus will do the rest!

Key features: 

  • In Place Lip Sync: Identify segments of your original video that need editing to match audio and lip movements.
  • Dubbing: Upload your video, choose a new language, and let Tavus dub your video in the target language.
  • Multi-language support: Tavus offers over 30 languages so you can reach an international audience.
  • Generate videos at scale: With just one pre-recorded video from you, Tavus can generate thousands of personalized videos, saving you time, labor, and money.

Pricing: 

  • Starter: $1/month
  • Hobbyist: $39/month
  • Business: $199/month
  • Enterprise: Contact Tavus for customized pricing.

Check out Tavus’ lip sync API!

2. Sync Labs API

The Sync Labs API offers real-time lip-syncing to dub audio and video content in many different languages. It’s compatible with movies, podcasts, games, and animations. Users need only upload audio and video files and Sync Labs will synchronize the two.

Key features: 

  • Precise synchronization: Users receive accurate lip-synced videos with the help of advanced AI.
  • Rapid processing: Sync Labs offers fast processing speeds so users can save time and labor.
  • Flexible integration: Sync Labs’ developer support allows for easy integration of the API with users’ existing workflows.

Pricing: 

  • Starter: Free
  • Creator: $19/month
  • Developer: $49/month
  • Business: $249/month
  • Enterprise: Contact Sync Labs for pricing.

3. AKOOL API

AKOOL’s lip sync API offers developers access to AI models trained on a large dataset of audio and video. As a result, AKOOL’s model understands typical lip movements in all its target languages, allowing for realistic generated lip movements synced to translated audio.

Key features: 

  • Dozens of languages available: AKOOL’s variety of available languages allows organizations to communicate with billions of potential customers.
  • Easy integration: AKOOL’s lip sync API can be synced with a variety of platforms, content management systems, and editing software.
  • Avatar generation: AKOOL users can generate talking-head marketing videos from text input.
  • Talking photo tool: With a simple upload of a headshot photo, users can generate videos of the subject speaking a given script, with settings to adjust voice style, language, speed, and more.

Pricing: Contact AKOOL’s sales team for pricing information.

4. Everypixel API

Everypixel Labs’ lip sync API allows users to reproduce a person’s lip movements in a video to match multiple languages. Users can simply upload a video of their actor or character from specific angles, add their audio track, and let Everypixel provide a high-quality dubbed video.

Key features: 

  • Works with video: Everypixel’s tech doesn’t need complex 3D avatars to work; users can upload standard video files to receive dubbed content.
  • Sync accuracy: Users receive accurate reproductions of lip movements without a loss in video quality.
  • Realistic results: Everypixel offers seamless lip movement synchronization and blending to provide natural-looking dubbed output.

Pricing: 

  • Basic: Free for a 5 minute trial
  • Business: Pay-as-you-go, $2 per 1 minute.
  • Enterprise: Contact EveryPixel Labs for pricing.

5. Colossyan API

Colossyan’s platform provides users with easy tools to create videos. Users can choose from Colossyan’s AI avatars and generate videos using the text-to-speech functionality. With real-time lip sync, Colossyan provides realistic videos in a variety of languages.

Key features: 

  • Text-to-speech: Generate audio in any of 200 voices.
  • 50+ languages: Colossyan supports video generation in over 50 languages.
  • Lip syncing options: Lip sync speech/audio to the actor of your choice.
  • Embedding options: Embed any image or video into your final video.

Pricing: Colossyan’s API is only available as an add-on to their Enterprise plan. Contact their sales team for pricing information.

6. HeyGen API

HeyGen is an AI platform for video generation that uses AI avatars and voices. HeyGen’s API allows developers to integrate HeyGen’s video generation tools into their own apps and platforms so they can automate personalized video generation within their workflows.

 

Key features: 

  • Template API: Users can generate customized videos from templates.
  • Video translation: Users can translate videos that clone their natural voice and delivery with just one click.
  • Streaming avatar: HeyGen users can integrate an AI avatar into their livestreams and chats.
  • Avatar videos: HeyGen allows users to select an avatar and voice from their library.

Pricing: HeyGen’s API is only available with their Enterprise plan. Contact their sales team for pricing.

7. Hour One API

Hour One is an AI video generation platform that allows users to automate their video production at scale. The Hour One API enables seamless integration between Hour One’s AI tools and developers’ own apps and platforms.

Key features: 

  • 100+ languages and voices: Hour One’s wide range of AI voices and languages allows users to localize content for any audience.
  • AI voice options: Users can choose from Hour One’s AI voices or use their voice cloning technology to replicate their voice for any given text input.
  • Video editing: Hour One enables easy video editing for any user without the need for specialized skills.
  • AI video tools: Hour One’s AI video tools include AI Wizards for script generation, AI Meeting Summary, personalization options, and video generation from PDFs, PPTs, and Docs.

Pricing: Hour One’s API is only available with their Enterprise plan. Contact their sales team for pricing.

8. Synthesia API

Synthesia is an AI video generation platform that provides virtual avatars to perform or narrate users’ scripts. With a variety of avatars and languages to choose from, users can create realistic videos at scale.

Key features: 

  • Lip sync: Synthesia provides realistic, human-like videos with its lip sync capabilities.
  • Broad range of avatars: Users can choose between 160+ AI avatars or create a custom avatar.
  • Large collection of AI voices: Synthesia offers 130+ AI voices, with frequent updates and additions for improved quality.
  • AI video editor: Users have access to AI editing tools that require no previous experience or specialized equipment.

Pricing: Synthesia’s API is available as part of their Creator and Enterprise plans.

  • Creator: $89/month ($67/month when billed yearly)
  • Enterprise: Contact their sales team for pricing.

Lip Sync Video API Use Cases

We’ll review a few common use cases for lip sync video APIs.

Editing Videos in Post-Production 

With lip sync video APIs, you no longer need to spend the time and money required for manual lip syncing during post-production. AI lip sync technology can accomplish the task for you in minutes! And if you notice portions of video in post-production where the audio and video don’t quite match, tools like Tavus’ in-place lip syncing allow you to identify and fix those segments.

Translating Marketing or Educational Videos 

If you limit your marketing or educational content to one or two languages with which you’re familiar, you’re missing out on quite a few potential audience groups. Lip sync video APIs can help you break language barriers to reach more people and grow your organization.

Personalizing Videos 

Salespeople have long understood the power of personalization in marketing. One of the top strategies for making a sale is creating a connection, and using names and other personal details is one of the most powerful ways to do so. AI lip sync makes it possible to spread that personalization across a broad audience. 

Video APIs like Tavus allow for personalized video marketing at scale, and lip sync technology ensures the individual changes still look realistic by matching your avatar’s lip movements to each new variable.

Generating Instant Avatars 

Need a video ASAP? No more waiting for high-quality voice overs or manual lip syncing! With AI lip sync and text-to-speech technology, you can generate high-quality, realistic video content in minutes. If you want those videos to use your own image, you need only upload a quick training video and let Tavus’ avatar generator do the rest.

More About Lip Sync Video APIs

We have answers to any lingering questions you may have about lip sync video APIs.

What industries can benefit from lip sync video API?

Lip sync video APIs can provide benefits for a variety of industries. Filmmakers use lip sync to change the film industry and improve viewer experiences of foreign films. Marketers can create personalized videos at scale and translate their videos into other languages to broaden their reach. Education may become more accessible if users around the world can access educational videos in their native language. 

But lip sync AI can make a difference in other areas that haven’t yet been explored. AI lip sync tech can generate accurate subtitles that align with lip movements to provide a seamless experience for people with hearing impairments. Medical professionals can benefit, as well, with highly realistic training videos and simulations thanks to AI lip sync.

These uses and more make AI lip sync a valuable tool for a broad range of industries.

Are lip sync video APIs legal?

Although lip sync deep fakes are becoming a cause for concern and potential targets for legal action, lip sync video APIs are legal. As long as you are replicating your own voice or an AI voice licensed through a reputable API, AI lip sync is legal and ethical.

At Tavus, we pride ourselves on providing tools for ethical deepfakes. Tavus allows you to replicate only your own image and voice, and we employ a suite of safety checks to protect your custom avatar and data.

Can lip sync API be used for real-time applications?

Absolutely. Real-time lip sync can be used to create highly realistic experiences in livestreams, live chats, and more.

Choose the Best Lip Sync Video API

If you’re looking to expand your reach with video translation or personalization, lip sync video APIs can help you achieve your desired results without sacrificing quality. You’ll get highly realistic videos to represent your brand without the time, money, and labor of traditional translation, voiceover, and lip sync processes.

Tavus’ lip sync and dubbing APIs can help you achieve all your translation and personalization needs in one place. Let Tavus do the work for you! We’ll help you reach broader audiences with over 30 languages and voice cloning technology that will make it seem like it’s you speaking each and every one.

Check out Tavus’ lip sync API today!

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