AI Video Voice Translation

Voice over translation tools add new, translated narration on top of the original audio, which stays audible in the background. This differs from dubbing or lip-sync dubbing, where the original voices are fully replaced and synchronized to lip movements.

By recording at a suitable volume, voice over preserves the feel of the original performance while delivering comprehensible narration in the target language.

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 with our Media Translation Agent involves the extraction of text from the original video, which is then used as a means to translate and create the localized AI video voice over in each new language.

AI voice over translation offers several advantages. 

It allows content to reach a broader international audience, as it provides access to the material in multiple languages—echoing industry leaders who stress that “language should never be a barrier in communicating globally”.[1]

AI voice over translation enables localized content, making it more culturally relevant and relatable to the target audience.

Compared to reshooting a scene with different actors, voice-over translation is a more budget-friendly way to make content available in multiple languages; industry surveys show that more than one-third of language service providers (LSPs) have already adopted AI voice-over precisely to meet this demand for cost-effective scalability.[2]

AI voice over translation can be completed relatively quickly, making it suitable for projects with tight timelines— current research is pushing speech-to-speech latency below one second to maintain conversational flow.[3]

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

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

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.

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

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

AI has made significant advancements in voice synthesis, and in some cases it can now produce high-quality, natural-sounding voices that rival human actors. For instance, some state-of-the-art systems deliver translations with significantly greater accuracy than earlier models. 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.

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, Portuguese, Dutch, Italian, Japanese, Russian, Greek, and many more, as well as less common and regional languages.

Smartcat supports the following file types for AI video and AI dubbing translation:

• mp4

• mpeg

• avi

• mov

• 3gp

• 3g2

• flv

• m2v

• m4v

• mkv

• mpg

• ogv

• qt

• ts

• vob

• wmv

Yes. You can generate AI voice overs with Smartcat, save the output as an audio file (MP3 or WAV), integrate it into your video using editing software, and then upload it 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.

To add online voice over translation to your TikTok videos, first use Smartcat’s AI Agents to generate your voice over in a preferred male or female voice. Get the audio file (e.g., MP3 or WAV), combine it with your TikTok video, and then upload to the platform. This is an effective way to get high-quality TIkTok videos that saves time and resources.

It's important to comply with TikTok's community guidelines and any copyright or usage restrictions related to the AI voice over content.

Automatically translating a video voice over with Smartcat is a seamless process. Start by uploading your video file to Smartcat, where the audio is transcribed into text automatically, in seconds.

This transcript is then translated into your target language using Smartcat’s AI translation, with high-quality results. You can review and edit the translation before proceeding to refine it to your liking.

Smartcat then generates a new voice over in your target language(s), and synchronizes with video timing. The entire process is streamlined and centralized end to end, saving you time and ensuring consistency across your video translation projects.

AI voice translation combines advanced speech recognition, automatic translation, and text-to-speech technologies in Smartcat's end-to-end video translation platform for enterprise teams.

Smartcat AI converts your video's original spoken language into text via automatic transcription. Smartcat then translates it using automatic translation, which leverages AI to produce accurate and contextually appropriate translations.

The platform then translates text into natural-sounding AI-generated speech, providing enterprise-quality results. You can choose from a wide range of female and male AI voice overs to resonate with your global audiences in any language.

Translating voice overs with Smartcat AI provides a range of key benefits. The end-to-end process can be completed in minutes, allowing you to handle large volumes of content quickly. You can unlock ROI savings with natural-sounding Smartcat AI voice over compared to traditional human-based alternatives. 

Smartcat's AI human workflow platform also provides a full editing workflow for optimal team collaboration and quality assurance, as well as a video editor to ensure audio/video timing and subtitle positioning refinement, where necessary.

Yes, Smartcat AI is able to produce translations with 95% accuracy the first time around. You can edit the transcriptions, subtitles, and translations Smartcat produces in its visual editor and have professional reviewers from your team or from the Smartcat Marketplace check the quality and consistency of the AI output.

Smartcat AI learns from your edits and so the next time you translate content, the AI output will be even better.

Research efforts are also focused on improving the quality of AI-processed audio, with studies delving into the use of conditional diffusion models to "improve voice quality" and enhance "speech enhancement". Such advancements are crucial for producing high-quality, natural-sounding voice-overs.[4]

Subtitles display translated text on-screen while the original audio plays, helping viewers read along in their language. Voice over adds a translated audio track so viewers hear narration in their language while the original audio is muted or quiet in the background.

Both options expand your global reach; voice over often feels more natural for learning or marketing content.

Smartcat provides a full and end-to-end AI dub workflow, allowing for real-time translation and dubbing of video content, with live previews to see the rendered dubbing in action during the review stage for fast, easy analysis and further edits. Use cases include multilingual videos for marketing, sales, product, and learning and development teams, and enterprise-quality YouTube videos.