Question 1

What is Lip Dubber?

Accepted Answer

Lip Dubber is an AI-powered video dubbing platform that translates spoken content in videos into other languages, complete with lip-synced speech.

Question 2

What languages are supported?

Accepted Answer

We currently support English, German, Spanish, French, Arabic, Chinese, and Japanese, with more languages being added regularly.

Question 3

What video formats can I upload?

Accepted Answer

You can upload most common video formats including MP4, MOV, AVI, and MKV. The maximum file size depends on your subscription plan.

Question 4

How long does processing take?

Accepted Answer

Processing time depends on the video length and selected options. A typical 5-minute video takes around 10–30 minutes to process.

Question 5

How accurate is the translation?

Accepted Answer

We use state-of-the-art AI translation models. While results are very good for most content, we recommend reviewing the output for specialized or technical material.

Question 6

Is my data kept private?

Accepted Answer

Yes. Your uploaded videos are processed securely and are only accessible to you. See our Privacy Policy for full details.

Question 7

What subscription plans are available?

Accepted Answer

We offer flexible credit-based plans. Visit the Billing page after signing in to see current pricing and features.

Question 8

My download was not successful after the dubbing pipeline completed successfully, what should I do?

Accepted Answer

Refresh the page, then try downloading once more.

Question 9

How much is a credit worth in USD?

Accepted Answer

Each credit costs $0.25 USD at the standard top-up rate. For example, processing a 1-minute video costs {creditsPerMinute} credits (${costPerMinute}). Overage rates may be lower depending on your subscription plan.

Question 10

How many minutes of video can I process with my credits?

Accepted Answer

Each minute of video (rounded up) costs {creditsPerMinute} credits. For example, 50 credits = 10 minutes, 200 credits = 40 minutes, and 1,000 credits = 200 minutes of video.

Question 11

What is AI video dubbing?

Accepted Answer

AI video dubbing is the process of automatically replacing the spoken audio in a video with speech in another language, using artificial intelligence. Unlike traditional dubbing — which requires voice actors, recording studios, and manual editing — AI dubbing uses machine learning to transcribe the original speech, translate it, generate new speech in the target language, and synchronise the speaker's lip movements to match. The result is a dubbed video where the speaker appears to speak the new language naturally. Lip Dubber handles this entire process in a single automated pipeline.

Question 12

How does AI lip sync work?

Accepted Answer

AI lip sync uses deep learning models to modify the mouth movements of a speaker in a video so they match a new audio track. Lip Dubber offers two lip-sync engines. The Standard engine generates realistic mouth shapes frame by frame based on the dubbed audio — it's fast and works on both CPU and GPU. The Premium engine uses a newer approach that processes in a compressed latent space, producing higher-quality results but requiring a GPU. Both engines detect the speaker's face in each frame, generate new mouth movements that match the synthesised speech, and blend the result seamlessly back into the original video.

Question 13

What is the difference between lip sync and voice-over?

Accepted Answer

A voice-over simply layers new audio on top of the original video — the speaker's mouth still moves to the original language, which creates a visible mismatch. Lip sync goes further by modifying the speaker's mouth movements so they match the new audio, making it look like the speaker is actually saying the translated words. Voice-over is cheaper and faster but looks unnatural, especially in close-up shots. Lip-synced dubbing is more immersive and professional. Lip Dubber produces lip-synced output by default, so your dubbed videos look natural rather than like a foreign film with a narrator talking over it.

Question 14

What languages can I dub my video into?

Accepted Answer

Lip Dubber currently supports dubbing between Arabic, Chinese, English, French, German, and Spanish. You can dub from any of these languages into any other — for example, English to German, Spanish to French, or Arabic to Chinese. For non-English pairs (e.g., French to German), the translation automatically pivots through English to maintain accuracy. We are actively adding more languages. Each language has multiple voice options, and you can select different voices and speaking styles in the upload settings.

Question 15

What happens during the video dubbing pipeline?

Accepted Answer

Lip Dubber processes your video through six AI-powered stages: (1) Audio separation — the original audio is split into vocals and accompaniment. (2) Transcription — speech is converted to timed text using advanced speech recognition. (3) Translation — text is translated into your target language while respecting the original timing. (4) Text-to-speech — translated text is converted into natural-sounding speech. (5) Lip sync — the speaker's mouth movements are modified to match the new audio. (6) Rendering — the lip-synced video is combined with new speech and original background audio. You can monitor each stage's progress in real time from the Jobs page.

Question 16

Can I dub a video that has background music?

Accepted Answer

Yes. The first stage of the pipeline uses Demucs, a deep learning model, to separate the spoken vocals from background music, sound effects, and other non-speech audio. The speech is then transcribed, translated, and re-synthesised independently. In the final rendering stage, the new dubbed speech is mixed back with the original background accompaniment, preserving the music and ambient sounds from your source video. You can also adjust the accompaniment volume in your pipeline settings.

Question 17

How can YouTubers use AI dubbing to reach a global audience?

Accepted Answer

Upload your video to Lip Dubber, select the target language, and download a fully dubbed version with lip-synced speech — ready to publish as a separate video on your channel. Many creators publish the same video in multiple languages to tap into non-English audiences, which can significantly increase views and subscriber growth. The automated pipeline means you don't need to hire translators or voice actors. You can dub a 5-minute video in roughly 10–30 minutes of processing time, making it practical to localise your entire back catalogue.

Question 18

Can I use Lip Dubber for e-learning and training videos?

Accepted Answer

Yes. Lip Dubber is well suited to instructional content where a presenter speaks to camera. The lip-sync technology keeps the presenter's mouth movements aligned with the translated audio, which is important for learner engagement — students stay focused when the speaker appears to be speaking their language. You can save your preferred settings as a preset and reuse it across an entire course library for consistency. The credit-based pricing means you pay proportionally to video length, so localising a library of short training modules is cost-effective.

Question 19

How does credit-based pricing work for video dubbing?

Accepted Answer

Lip Dubber uses a credit system based on video duration. Each minute of video (rounded up) costs {creditsPerMinute} credits. All subscription plans include a monthly credit allowance: Starter ($9.99/month) includes 50 credits (10 minutes of video), Pro ($29.99/month) includes 200 credits (40 minutes), and Enterprise ($199.99/month) includes 1,000 credits (200 minutes). If you need more, you can top up at any time. The overage rate depends on your plan: $0.25/credit for Starter, $0.20 for Pro, and $0.15 for Enterprise.

Question 20

Can I try Lip Dubber for free before subscribing?

Accepted Answer

Yes. Lip Dubber offers a free trial that lets you upload a short video or audio file and dub the first 10 seconds at no cost — no credit card or subscription required. Just enter your email on the free trial page, and we'll send you a login link. Once logged in, upload your file, choose a target language, and see the full pipeline in action: transcription, translation, voice synthesis, and lip sync.

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