AI voice-overs and captions for TikTok, Reels and Shorts

For TikTok, Instagram Reels and YouTube Shorts, a fast AI workflow is: write a short hook-first script, generate the voice-over with text to speech, add automatic captions and a sound effect or two, cut it in a portrait project, and export an MP4. In wawie every step runs in the browser, and the finished video can be dubbed into 24+ languages. You can start free.

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Updated September 27, 2026

Short-form video runs on volume and speed. A creator or a brand may post several clips a week, each needing a punchy voice-over, captions for people watching on mute, and a sound or two that lands on the cut. Recording and re-recording every take is often what slows people down. With wawie you type the script, pick a voice and have narration back in seconds, then caption and cut the clip in a portrait project. When one clip works, you can make versions in other languages from the same finished video.

How do you make a TikTok voice-over with AI?

Write the script the way people talk: a hook in the first sentence, short lines, one idea per clip. Paste it into text to speech, browse voices by language, gender and style, and preview a few on your hook, since the opening line matters most. Energetic conversational voices suit tips and reviews, calm narrators suit storytelling, and character voices suit comedy. Generate, listen, and regenerate a single line if the rhythm is off. Download the result as MP3 or WAV, or generate it inside the studio so it lands on your timeline. Reuse the same voice across a series so viewers recognise it.

Hook in the first sentence.
Short lines, one idea per clip.
Preview voices on the hook before generating the full script.
One voice per series, so viewers recognise it.

Why do short videos need captions and sound effects?

Plenty of people scroll with the sound off, so captions carry the message when the voice cannot. Automatic subtitles in the wawie studio transcribe the audio and cut it into lines synchronised to the word; you fix a name or a slang term, then pick an animated style with per-word effects such as karaoke or bounce. Sound effects do the opposite job for people who are listening: a whoosh on a transition, a pop on a reveal, a riser before the punchline. Describe the sound in a line of text, generate a few variations, and place the one that fits exactly on the cut.

How do you publish the same short in several languages?

A clip that works in one language can often work in others. Export the finished short as an MP4, then run it through video dubbing: pick target languages among 24+, and wawie transcribes, translates and re-voices it, keeping the original timing so your cuts still land. If you narrate with your own cloned voice, each version keeps it. Every dub comes with timed captions you can review in the studio. If you would rather keep the original voice-over, translate the captions instead. Check each platform's rules on AI-generated content and use any label they require.

One finished video, 24+ possible target languages.
Your own voice in each version with a consented clone.
Timed captions with every dubbed version.

How do you go from idea to posted short in wawie?

Write a hook-first script: Create a free account and write a short script. Lead with the hook, keep sentences short, and note where you want a sound effect or a word on screen.
Generate the voice-over: Open text to speech from the dashboard, pick a voice that matches the tone, and generate. Regenerate single lines until the pacing feels right, or use your cloned voice to keep your own sound.
Cut it in a portrait project: Create a portrait project, open it in the studio, drop in the voice-over, footage and images, and trim to the rhythm. Beat markers detected on the music help you cut on the beat.
Add captions and sounds: Run automatic subtitles, fix any word, and choose an animated caption style. Generate a whoosh or a pop from a short description and place it on the transition it belongs to.
Export and make versions: Export the MP4 and post it. For other markets, upload the finished video to video dubbing, choose target languages among 24+, and review each version before you publish it.

Which wawie tools help with short-form video?

Text to speech: Generate a voice-over in seconds from 1000+ voices in about 30 languages, with conversational, character and advertising styles to match the tone of each clip.
Automatic subtitles: Transcribe speech into timed captions, correct any word, translate them, and burn styled captions into the video for viewers who watch without sound.
Sound effects generator: Describe a whoosh, pop, riser or ambience in a line of text, generate a few variations, and drop the royalty-free result onto your timeline.
Online video editor: Cut clips in a portrait project on a multitrack timeline, add animated text, captions and transitions, and export an MP4 ready to post.
Video dubbing: Turn one finished short into versions in 24+ languages, keeping the original timing and, with a consented clone, your own voice.

Frequently asked questions

Can I use wawie voices instead of TikTok's built-in text to speech?

Yes. Built-in text-to-speech features in apps such as TikTok are handy for quick posts, but wawie gives you 1000+ voices in about 30 languages, the option to clone your own voice with consent, and audio files you can reuse on every platform. Generate the voice-over, add it in the wawie studio or in the app you post from, and keep the same voice across a whole series.

What voice style works best for TikTok and Reels?

It depends on the content. Tips, reviews and lists usually work with an energetic, conversational voice, stories and explainers with a calmer narrator, and comedy with a character voice. In wawie the voice library is organised by language, gender and style, including narrator, character, advertising and conversational voices, and you can preview each one on your opening line before generating the whole script.

How do I add captions to a TikTok or Reel automatically?

Open your clip in the wawie studio and run automatic subtitles: the audio is transcribed and cut into lines synchronised to the word. Correct names or slang, pick an animated style, for example karaoke or bounce per word, and export the MP4 with the captions burned in. If you need a separate caption file, the subtitles tool also exports SRT or VTT.

Can I make the same short in several languages?

Yes. Export the video, upload it to video dubbing, and pick target languages among 24+. wawie transcribes, translates and re-voices the speech while keeping the original timing, so your cuts and on-screen moments still line up. With a consented clone of your voice, each version sounds like you. Review each language in the studio, then post it where that audience watches.

Are the sound effects and music safe to use on social media?

Sound effects and music you generate in wawie are created for you rather than taken from an existing catalogue, and you can use them in your projects, commercial ones included, within the model providers' terms on a paid plan. That avoids the licensing questions that come with commercial tracks. Sounds from a platform's own library remain subject to that platform's rules.

How much does it cost to produce a short with AI?

It depends on length: credits are spent per second of audio produced or per character read, and the cost is shown before you launch each generation. You can start free with 5,000 one-time credits and no card. Wawie Start costs EUR 4.99 a month for 180,000 credits, and Wawie Pro costs EUR 14.99 a month for 750,000 credits, with yearly billing available on both.

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