AI Voiceover Generator for YouTube, Shorts and Reels: Script In, MP3 Out
Voiceovers are made with VdoBloom's AI Text to Speech tool: paste a script, pick a voice, get an MP3.
A YouTube video, a Short or a Reel usually needs the same thing once the script is written: a clean narration track you can drop onto the timeline. VdoBloom makes that track from text. Paste the script, choose a voice, and you get an MP3 voiceover back, with no microphone, no booth and no re-recording when one line changes. For a Short or a Reel the whole script is usually a few hundred characters, so one generation covers it.
Three engines do the voicing. MiniMax Speech 2.8 has 26 named voices and is the default; Fish Audio S2.1 Pro adds 8 voices in 80+ languages and xAI TTS 27 expressive voices. The Language menu offers 16 languages, including English, Hindi, Tamil, Spanish, Portuguese, Japanese and Arabic, so the same script can be voiced for a second channel or audience. Pricing is by length only: 8 credits per started block of 1,000 characters on MiniMax and 6 on xAI, shown before you click Generate.
What this tool does
- VdoBloom's voiceover tool runs three engines: MiniMax Speech 2.8 (26 voices, the default), Fish Audio S2.1 Pro (8 voices) and xAI TTS (27 expressive voices), 61 named voices in all.
- The Language menu has 16 options plus Auto: English, Hindi, Tamil, French, German, Spanish, Italian, Portuguese, Japanese, Korean, Chinese (Mandarin), Arabic, Russian, Indonesian, Turkish and Vietnamese. MiniMax Speech 2.8 itself speaks 40 languages; Telugu, Bengali, Marathi and other Indian languages beyond Hindi and Tamil are not available for voice.
- Pricing is 8 credits per started block of 1,000 characters on MiniMax and 6 on xAI — a 900-character Short script costs 8 credits on MiniMax, a 3,500-character YouTube narration costs 32.
- MiniMax takes up to 10,000 characters per generation and splits and joins long text automatically; the text box shows a live counter.
- Output is a single MP3 per generation. Playback in the browser works on every plan; MP3 downloads need a paid plan.
- New accounts get 10 free credits, enough to voice one script of up to 1,000 characters.
- On a failed generation, the deducted credits are refunded automatically.
Script length by format
Spoken English runs at roughly 130 to 160 words a minute, and an English word averages about six characters with its space, so a minute of narration is somewhere around 800 to 1,000 characters. That is why the 1,000-character price block lines up neatly with short-form video: most Shorts and Reels scripts fit inside a single block.
A longer YouTube narration is where length starts to matter. MiniMax voices up to 10,000 characters per generation, about ten minutes of speech, splitting and joining long text automatically. Splitting at natural pauses also makes it easy to regenerate one section without paying for the whole script again.
| Format | Typical script | Approx. characters | Credits |
|---|---|---|---|
| Short or Reel hook + body | 15-45 seconds | 250-750 | 8 |
| 60-second Short or Reel | about 1 minute | 800-1,000 | 8 |
| 3-minute YouTube segment | about 3 minutes | 2,500-3,000 | 24 |
| Full YouTube narration | up to 10,000 characters in one generation | up to 10,000 | 8 per started 1,000 |
Choosing a voice for the channel
Pick one voice and keep it. A channel that changes narrator between uploads sounds like a different channel, so test two or three voices on the same opening line, choose one, and note its name for every future video. A short test costs the same single 8-credit block (on MiniMax) as a 999-character one.
MiniMax Speech 2.8 gives you the widest choice, 26 voices (13 female, 13 male, such as Olivia, Emma, Daniel and Marcus) with different tones. xAI TTS has 27 voices (una, leo, eve, ara, sal, rex and more) described in the app as expressive, which suits energetic hooks and reaction-style Shorts. If the script mixes languages or uses names the voice might mispronounce, set the language in the menu instead of leaving it on Auto.
What it does not do
It does not clone your own voice (that is the separate AI Voice Clone tool); both engines use their own fixed voice lists. It does not re-voice an existing video or audio file; for a translated talking video, VdoBloom's Translate & Dub flow layers translation and a talking photo on top of a TTS step. And it does not write the script: it assumes you already have the words. For a script written together with the visuals, the faceless-channel and creator-reel tools generate both.
How it works
1.Paste the script
Open Text to Speech at /text-to-speech/ and paste your YouTube, Shorts or Reels script. With MiniMax selected, a counter shows how close you are to the 10,000-character limit.
2.Choose an engine and a voice
MiniMax Speech 2.8 (26 voices, the default), Fish Audio S2.1 Pro (8 voices) or xAI TTS (27 expressive voices). Keep the same voice across uploads so the channel sounds consistent.
3.Set the language
Pick one of 16 languages or leave it on Auto. Setting it helps with names, accents and scripts that mix languages.
4.Check the cost and generate
The credit cost, 8 per started 1,000 characters on MiniMax or 6 on xAI, is shown before you click Generate. Failed generations are refunded automatically.
5.Download the MP3 and drop it on the timeline
Listen in the browser, then download the MP3 on a paid plan and import it into your video editor under the visuals.
Frequently asked questions
Can I use an AI voiceover on YouTube?
Yes. YouTube allows synthetic narration, and many faceless channels use it. YouTube does ask creators to disclose realistic altered or synthetic content in some cases, such as making a real person appear to say something they did not, so read its current disclosure rules for your video. A narrator voice reading your own script is the ordinary case.
How many voices are there?
61 named voices on three engines: 26 on MiniMax Speech 2.8, 8 on Fish Audio S2.1 Pro and 27 on xAI TTS.
How long can the script be?
MiniMax takes up to 10,000 characters per generation, roughly ten minutes of speech, and splits and joins long text automatically. For anything longer, split the script at paragraph breaks and generate each part.
How much does a voiceover cost?
8 credits per started block of 1,000 characters on MiniMax, 6 on xAI. A typical 60-second Short script is one block, 8 credits on MiniMax; a 3,000-character YouTube segment is 24 credits.
Is it free?
You can try it with the 10 free credits every new account gets, which covers one script of up to 1,000 characters. Playback works on every plan; downloading the MP3 needs a paid plan.
Which languages can the voiceover be in?
16 languages in the menu, including English, Hindi, Tamil, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese, Arabic, Russian and Vietnamese. Telugu, Bengali and Marathi are not available.
Can I clone my own voice?
Not in this tool, which uses each engine's fixed voice lists. VdoBloom's separate AI Voice Clone tool (/ai-voice-clone/) reads text in your own voice from a 3–15 second sample, in 10 languages, with your consent.
What format is the file?
One MP3 per generation, which imports into any video editor, including CapCut, Premiere Pro, DaVinci Resolve and the YouTube and Instagram editors.
Related tools
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