Doubao TTS Pro
The AI voice generator runs on Doubao TTS Pro, a text-to-speech model from ByteDance, and returns an audio file when the request finishes.
AI voice generator for narration and voice-overs
The Unicorn Router AI voice generator converts text into spoken audio with Doubao TTS Pro. Paste a script into the AI voice generator, pick a speaker from the library, set the speed and download the narration. The current voice library is built around Chinese-language voices.
What is an AI voice generator and which voices does Unicorn Router offer?
An AI voice generator is a text-to-speech tool that reads a script aloud and returns an audio file. The Unicorn Router AI voice generator runs on Doubao TTS Pro, a model from ByteDance. The voice library is built around Chinese-language voices, including regional styles such as Beijing, Northeast and Cantonese, and can be filtered by accent, gender, age and use case. A speed control sets the pace of the narration. A voice-over costs credits based on the length of the text, with a minimum charge, and the AI voice generator shows the estimate before generation. Finished audio is delivered as an MP3 file and saved to your history. Voice cloning is not available yet. The AI voice generator needs Pro at $25 per month, Pro Max at $55 per month, or pay-as-you-go credits from $10, and commercial use needs Pro Max.
What the AI voice generator can do
A voice library with filters
Browse named voices in the AI voice generator and filter them by accent, gender, age and use case, such as advertising, storytelling or character animation.
Speed control
Slow the delivery down for tutorials or speed it up for short ads. The AI voice generator lets you generate again until the pacing fits.
Credit cost up front
A voice-over costs credits based on the length of the text, with a small minimum. The AI voice generator shows the estimate before you generate.
How to use the AI voice generator
- 1
Open the voice-over tool
Sign in and open the Create voice-over tool, the AI voice generator, from the Audio hub.
- 2
Paste your script
Type or paste the text you want to hear. Short sentences usually sound the most natural in an AI voice generator.
- 3
Choose a voice and speed
Open the voice library, filter by accent, gender, age or use case, and pick a speaker. Then set the speed.
- 4
Generate and download
Click Generate. The AI voice generator saves the audio to your history, and you can download the MP3.
Tips for better results from an AI voice generator
Write for the ear
Use short sentences and everyday words, and read the script aloud once before you generate it. Anything that is hard to say is usually hard to listen to, so rewrite long or clumsy lines until they flow.
Use punctuation to pace the speech
Commas and full stops create pauses. Add them wherever you want the speaker to take a breath, and split very long sentences in two.
Test a short sample first
Generate a sentence or two with a new speaker before you commit to the full script, so you can check the tone, the pace and the pronunciation of names and numbers.
What you can make with an AI voice generator
Pair the narration with clips from our AI video generator, or use it on its own.
Video narration
Add narration from the AI voice generator to short videos, explainers and slideshows in your video editor.
Audio ads and intros
Record a podcast intro, a promo read or an announcement with the AI voice generator instead of a microphone.
Character voices
Use character-style voices from the AI voice generator for stories, games and animation drafts.
Start with the AI voice generator
Sign up free, then upgrade to Pro or Pro Max, or top up pay-as-you-go credits, to use the AI voice generator.
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Learn moreFrequently asked questions
What is an AI voice generator?
An AI voice generator is a text-to-speech tool. It reads a script aloud in a synthetic voice and gives you an audio file. The Unicorn Router AI voice generator uses Doubao TTS Pro.
Which languages does the AI voice generator offer?
The current voice library is built around Chinese-language voices, including regional styles such as Beijing, Northeast and Cantonese. You can filter the voices by accent, gender, age and use case.
Can I clone my own voice?
Not yet. Voice cloning is listed as coming soon in the Audio hub. For now the AI voice generator uses the built-in voice library.
Is the AI voice generator free?
The free plan covers text and image generation. The AI voice generator needs a Pro or Pro Max plan or pay-as-you-go credits, and it shows the credit cost before you generate.
Can I use the audio commercially?
Audio from the AI voice generator carries a commercial license on the Pro Max plan. Audio created on the Free, Pro and pay-as-you-go plans is licensed for personal use.
How should I format my script?
Write the way you speak. Keep sentences short, spell out numbers and abbreviations the way they should be read, and add commas where you want a pause. A short test sentence is a cheap way to check pronunciation before the full script.
Where do the audio files go?
Every finished file is saved to your history in the workspace, where you can play it again and download the MP3.
Which formats can I download?
Audio is delivered as an MP3 file, which opens in any editor, podcast tool or player.
Can I use the audio together with video?
Yes. Download the MP3 and place it on your timeline in any video editor, next to clips from our AI video generator or footage you filmed yourself.