AI voice over translation software for cost-effective, high-quality localized videos

Upload your one-language videos and get them back with embedded, high-quality AI voice over in up to 280 languages to ensure a culturally-relevant experience for your audiences

AI multilingual voice over for a fraction of the price

Get more videos done for the same budgets with high-quality AI voice overs that cost cents instead of hundreds of dollars. No commercial fees or studio costs are required.

Easily translate voice over and subtitles and get them back embedded in 280+ languages

Upload your video to the Smartcat AI translation platform in one language and get it back in multiple language versions, both with AI voice over and burned-in subtitles. Your translated text, including scripts, are saved into your central content system of record on Smartcat.


Upload your videos to Smartcat


Smartcat platform applies AI voice over


AI human workflows ensure VO alignment


Export multilingual AI voice videos and share with your global audiences

Contextual, configurable, and high-quality AI voice translation tailored to your specific brand voice

Smartcat’s Consistent Language AI™ provides voice translations that fit your brand tone, style, and terminology to ensure you are communicating consistently with all your international audiences, which is crucial in driving global success.

Fast, high-quality translation at scale

Trained on your company’s existing content

Includes generative AI capabilities

Ideal for generating meaningful, culture-specific content

This groundbreaking technology will help us accelerate the creation of high-quality content in any language while adhering to our brand standards and terminology.

Cameron Smith

Director of Localization at Usana Life Sciences

AI voice over localization is an integral part of Smartcat’s video translation capabilities

With Smartcat, you can simply upload your videos and get them back in up to 280 different languages both with AI voice over AND burned-in subtitles. Your in-house team or hired linguists from the Smartcat marketplace can also edit transcripts and scripts in the user-friendly Smartcat Editor.

Increase learning absorption of L&D workplace training videos

Employees who watch training videos with voice overs and subtitles in their mother tongue better understand the subject matter and are more likely to finish the courses.

Benefits of localized workplace training


improved course completion rates


increase in employee retention


of workers say it increases their job satisfaction

Harness the efficiency of Smartcat AI Voice Over

to ensure a culturally-relevant experience for your audiences

Smartcat AI Voice Over Q&A

What is voice over translation?

Voice over translation, also known as "dubbing" or "lip-sync dubbing," is a process in which the original audio of a video or film is replaced with a translated version in a different language. This translation is synchronized with the lip movements of the original actors to make it appear as though they are speaking the translated dialogue.

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What is AI voice over?

AI voice over refers to the use of artificial intelligence (AI) technology to generate human-like voices for various applications, such as narration, voice acting, virtual assistants, audiobooks, video game characters, and more. Instead of using human voice actors to record the required audio, AI voice over technology can synthesize the desired voice, saving time and resources.
AI speech translation via Smartcat translation app involves the extraction of  text from the original video, which is then used as a means to translate and create the localized AI Voice Over in each new language.

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What are the benefits of AI Voice Over translation?

AI Voice Over translation offers several advantages:

Language Accessibility: It allows content to reach a broader international audience, as it provides access to the material in multiple languages.

Cultural Relevance: AI Voice Over translation enables localized content, making it more culturally relevant and relatable to the target audience.

Cost-effectiveness: Compared to reshooting a scene with different actors, voice over translation is a more cost-effective method of making content available in multiple languages.

Time Efficiency: AI Voice Over translation can be completed relatively quickly, making it suitable for projects with tight timelines.

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How does AI voice over work?

Language translation software with voice over capabilities typically use a technique called text-to-speech (TTS) synthesis. The process involves the following steps:

Text Processing: The input text is analyzed, including factors like punctuation, emphasis, and tone, to ensure the generated voice sounds natural and expressive.

Linguistic Analysis: The AI system breaks down the text into phonetic and linguistic components to understand how each word and sentence should be pronounced.

Voice Modeling: AI models are used to mimic human voice characteristics, such as pitch, tone, and accent. These models are often trained on massive datasets of human speech to learn various speaking patterns.

Voice Synthesis: Using linguistic and voice modeling information, the AI system generates the corresponding speech in a natural-sounding voice.

Output: The final output is an audio file with the synthesized voice reading the input text.

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Will AI replace voice actors?

AI has made significant advancements in voice synthesis, and in some cases, it can produce high-quality, natural-sounding voices that rival those of human voice actors. However, whether AI will completely replace voice actors depends on the specific context and requirements of the project.

In cases where natural and emotive human performances are crucial for conveying authenticity and building emotional connections with the audience, human voice actors are likely to remain the preferred choice. Marketing, audiobooks, animated films, and certain creative projects often benefit from the unique nuances and expressions that human actors can bring to the table.

On the other hand, for tasks that involve large volumes of repetitive or standardized content, training modules, automated voice assistants, navigation systems, and some voice-over applications, AI can be a more efficient and cost-effective solution. AI voice over technology can handle massive workloads, provide consistent results, and operate 24/7 without fatigue.

In summary, while AI Voice Over technology has its merits, it is not likely to replace voice actors entirely but rather complement and coexist with them in various domains.

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How many languages does Smartcat support?

Smartcat supports over 280 languages. This extensive language support allows users to manage translation and localization projects for a wide range of markets and regions worldwide. It covers major languages like English, Spanish, Chinese, French, German, and many more, as well as less common and regional languages.

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How many different video file types does Smartcat offer?

Smartcat supports the following file types for AI video translation:

  • mp4

  • mpeg

  • avi

  • mov

  • 3gp

  • 3g2

  • flv

  • m2v

  • m4v

  • mkv

  • mpg

  • ogv

  • qt

  • ts

  • vob

  • wmv

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Can I use AI Voice Over on YouTube?

Yes, you can use AI Voice Over on YouTube. After generating the AI Voice Over on Smartcat, you can save the resulting audio as an audio file (e.g., MP3 or WAV). Then, you can add the AI-generated audio to your video using video editing software before uploading it to YouTube.

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How to add AI voice over on TikTok?

To add AI voice over to your TikTok videos, you need to generate the AI voice over, get the audio file (e.g., MP3 or WAV), combine your TikTok video with the AI-generated audio, and upload to TikTok. Remember to comply with TikTok's community guidelines and any copyright or usage restrictions related to the AI voice over content.

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