Translating Children's Videos Into Other Languages

Why subtitles rarely work for young viewers

Subtitles assume a fluent reader. A preschooler can't read them, and a child who is just learning to read decodes words far more slowly than subtitles move. Even when an early reader can follow, reading pulls their eyes away from the picture, which is where most of the story and the teaching happen.

So for children, the voice track is the main deliverable and subtitles are the extra. As a rough guide, not a rule, since reading ability varies widely:

Pre-readers

Voice track only; subtitles are for the adult watching alongside

Early readers

Voice track first; same-language subtitles can support reading practice

Confident readers

Subtitles become workable for some content; voice still easier for long videos

Young teens

Similar to adults; choose by content and the viewer's preference

Teachers choosing formats for a class with several home languages have different constraints, covered in videos for multilingual classrooms. This article focuses on the translation itself.

Words a child actually knows

Translation engines are trained mostly on adult text, so they tend to choose the precise, adult word where a children's writer would choose the simple one. "Enormous" may become the target language's formal equivalent rather than its playground word for "really big". Read the translated transcript with one question in mind: would a child of this age say or understand this?

Some features of children's speech need particular attention:

• Diminutives. Spanish, Polish, Russian, Italian and Dutch use diminutive endings constantly when talking to children. A translation from English rarely adds them, so the result can sound stiff and distant.
• Animal sounds and onomatopoeia. A dog says "woof" in English, "guau" in Spanish, "wau wau" in German and "wan wan" in Japanese. Machine translation often leaves the English sound in place.
• Direct address. "Can you find the red ball?" needs informal address in languages that mark it, and the plural form if the video speaks to a group. The background on why engines get this wrong is in context in machine translation.
• Character names. Decide once whether characters keep their names or get local ones, and apply it everywhere.
• Learning content. A video teaching English letters, phonics or rhyming words doesn't translate into a video teaching Japanese letters. That needs new content, not a translation.

For explainer and classroom-style videos, curriculum terminology and reading level are covered in localizing educational videos.

Pacing and the pauses children fill

Good children's videos leave room. The host asks "What color is this?", waits two seconds, then says "Red!" Those pauses are where the child answers, and they are easy to lose.

When translated speech runs longer than the original, as it often does, a dubbing tool has to fit the line into roughly the same time slot. Lines may start slightly early or run slightly late, and the voice may be sped up a little. For adult viewers that is barely noticeable. For a four-year-old, a question that runs into its own answer turns a participation moment into noise. Why translations change length is covered in text expansion in translation.

Watch every question-and-answer moment in the dubbed version. If a pause has shrunk, you can widen it in a video editor by nudging the answer line later, or shorten the question in your source script for the next video.

Songs, rhymes and counting

Songs are the hardest part of most children's videos. A rhyme translated for meaning stops rhyming. A counting song may count in a rhythm that the target language's numbers don't fit. An alphabet song is meaningless in a language with a different alphabet.

A dubbed voice track also won't sing. It speaks the translated lyrics in the narrator's voice. And in a translated video file, the original music stays but sung vocals are removed along with the speech, so a song keeps its instruments and loses its singing. Your options are to keep the original song in its language by cutting to the original audio for the song section in an editor, to replace it with a known song in the target language, or to cut it. Subtitling versus adapting lyrics is covered in depth in translating song lyrics in videos, and how the original music is kept, and its limits, is explained in background music in translated videos.

Choosing a voice when every option is adult

Children's media often uses a child's voice or a character voice for a puppet or cartoon animal. Stock synthetic voices are usually adult voices, and mydubly's eight are all adult. Don't try to make an adult voice pass for a child. Instead, choose the adult voice a good children's presenter would have.

• For lively, playful content, an energetic or expressive voice keeps attention.
• For bedtime stories and calm learning videos, a calm or narrator voice works better.
• For a series, keep the same voice in every episode. Young children attach to voices quickly.

One voice speaks the whole video, so a puppet show with three characters becomes one narrator voicing all of them. That works for stories told by a narrator and poorly for dialogue between characters. More general guidance on voice choice is in how to choose an AI voice.

A workflow from source video to reviewed dub

1. Check the source. Remove or plan around songs, letter-teaching segments and on-screen words that carry meaning.
2. Translate and generate the dubbed version in the target language with the voice you picked.
3. Read the translated transcript for vocabulary: simple words, diminutives where natural, local animal sounds, consistent character names.
4. Watch the dubbed video in full, with the sound on, at normal speed. Note every pause that has shrunk and every line that sounds rushed.
5. Fix what you can in an editor: widen pauses, restore original songs where they matter, and replace a wrongly worded line with a corrected recording. The process is covered in editing dubbed audio in a video editor. Wording problems that recur are best fixed in your source script for future videos.
6. Have a fluent parent or teacher watch the final version as if they were the child.

Review, safety and trust

Children's content needs a higher bar than adult content because the audience can't judge it. Every translated version should be watched start to finish by an adult who is fluent in the target language, ideally a parent or teacher who knows what children of that age say and hear.

Ask the reviewer to look for:

• Mistranslations that produce a rude, frightening or inappropriate word, including near-homophones that a child would giggle at for the wrong reason.
• Safety messages, such as crossing the road or not touching something hot, that must be exactly right.
• Recognition errors in the source transcript. Speech recognition models are trained mostly on adult speech, so children speaking on camera tend to be transcribed less accurately, and those errors flow into the translation.
• Cultural details, such as foods, holidays or gestures, that may confuse or upset children elsewhere.

Platforms also have their own rules for content aimed at children, and laws about children's privacy differ between countries. Check the current help pages of the platform you publish on; this article isn't legal advice.

Limits of translating kids' videos with AI

• No child or character voices, and no separate voices for different characters.
• Songs are spoken rather than sung. The original music is kept in the translated video file, but sung vocals are removed along with the speech.
• Printed words, letters and numbers in the picture stay in the original language.
• Animated mouths won't match the new language, since there is no lip-sync.
• Literacy and phonics content needs to be recreated for the new language rather than translated.

For many children's videos, especially narrated stories, simple explainers and calm learning content, these limits are manageable. For character-driven cartoons and music-heavy shows, professional dubbing with casted voices remains the better fit.

How mydubly fits children's content

mydubly takes a video or audio file in the browser and produces a dubbed version: translated audio (M4A), with the new voice over the original music and effects, and a translated video, in one of 21 languages, spoken by one of eight stock adult voices. You also get the transcript and translated transcript, which are what a reviewer reads. Spanish and Portuguese have regional voice variants, which matters when you're making a version for families in a specific country.

Pricing is per minute, so short children's videos are inexpensive to test. A 6-minute video costs 300 credits (30¢) to dub, and the 2-minute minimum per file means even a 90-second clip is billed as 2 minutes, 100 credits (10¢). The video file itself stays on your device during processing; only compressed audio chunks are sent, and results are deleted within 30 minutes of completion, which some parents and schools will want to know.

mydubly doesn't produce child voices, songs, lip-sync or translated on-screen text, so plan those parts with an editor or a professional. The AI dubbing page describes the voice options, and the guide on how to dub a video with AI walks through a first job.

Start with one short video

Pick your shortest, most narrated video, dub it into one language, and give it to a fluent parent or teacher with the review list above. Their notes will tell you more about what your series needs than any checklist, and they'll show you which videos to translate next and which to leave alone.