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AI · February 26, 2024

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AI dub tool I made to watch foreign language videos with my 7-year-old

Hey HN! I love watching YouTube with my 7-year-old daughter. Unfortunately, the best stuff is often in English (we're German). So I made an AI tool that translates videos directly, using the original voices. All other sounds, as well as background music, are preserved, too. Turns out that it works for many other language pairs, too. So far, it can create dubs in English, Mandarin Chinese, Spanish, Arabic, French, Russian, German, Italian, Korean, Polish and Dutch. The main challenge in building this was to get the balance right between translating the original meaning and getting the timing…

AI dub tool I made to watch foreign language videos with my 7-year-old launched on February 26, 2024 with 348 votes, #100 of 3,962 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 2 years on.

Visit speakz.ai ↗Alternativestop 3% of February 2024

In plain words

This AI tool translates videos into different languages while preserving original speaker voices, background music, and sound effects. It supports eleven languages including English, Mandarin, Spanish, and German. Designed for parents wanting to watch foreign-language content with children, it addresses the technical challenge of matching translations to original timing, particularly for language pairs where translations are longer than the source material.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hey HN! I love watching YouTube with my 7-year-old daughter. Unfortunately, the best stuff is often in English (we're German). So I made an AI tool that translates videos directly, using the original voices. All other sounds, as well as background music, are preserved, too. Turns out that it works for many other…

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