Text to Speech and AI Voice Generator
China AI’s text to speech tool turns written scripts into spoken audio. Choose a library voice, clone a voice from a recording, design a new voice, or build dialogue with multiple speakers. Use it to prepare narration for lessons, tutorials, stories, and videos, with the voice and script chosen for the message you want people to hear.
Choose the Right Way to Create Your AI Voice
Start with the part of the recording that matters most. For a straightforward tutorial, you may need a clear narrator without creating a voice from scratch. For a recurring character, the identity of the voice may be central. For a scene between characters, assigning the lines to different speakers is more useful than generating everything as one uninterrupted monologue.
| Your starting point | Choose | What to prepare |
|---|---|---|
| A script that needs a narrator | Text to Speech | Written text and a suitable library voice |
| A voice you want to recreate | Voice Cloning | A clear recording of a voice you have permission to use |
| An imagined voice without a recording | Voice Design | A description of its vocal character and a sample script |
| A conversation between characters | AI Dialogue | Separate lines and speaker assignments |
Listen to library previews before committing to a full script. A voice that sounds appealing in a short greeting may be less suitable for a technical explanation full of names and numbers. Test a representative passage: one ordinary sentence, one difficult phrase, and the kind of ending your script uses. This gives you a more useful comparison than auditioning voices with unrelated text.
Mode selection also affects the material you need. Voice cloning starts with audio; voice design starts with a description. Neither is necessary if a library voice already communicates the right tone. Choose the simplest route that meets the needs of the recording.
Turn a Written Script into a Listen-Ready Voiceover
Text written for a screen often needs a small edit before it works well as speech. A listener cannot scan backward through a long sentence as easily as a reader can. Break dense instructions into separate actions, make references explicit, and remove headings or notes that are not meant to be spoken.
Read the script aloud once before generating. Where you naturally stop to breathe, a sentence break may work better than another comma. If a line includes a date, an abbreviation, or a product name, decide how a person should say it. For example, writing “September eighteenth” instead of a numeric date tells the voice which reading you intend. Keep the display version in your slides or captions and use the spoken version in the narration script.
Use this text-to-audio workflow:
- Choose the mode and voice that fit the recording.
- Enter a short, representative section of your script.
- Generate and listen for pronunciation, rhythm, and tone.
- Revise the wording that causes trouble, then generate the finished passage.
- Download the audio and check it alongside the visuals or lesson material it will accompany.
For a screen-recorded tutorial, align the script with visible actions. Give the listener time to locate a button before describing the next step. For an introduction, put the purpose of the video early instead of opening with several sentences of background. A better script often improves the usefulness of a voiceover more than changing the voice repeatedly.
Voice Cloning or Voice Design: Choose Your Starting Point
Voice cloning is useful when the starting point is a real vocal identity. Use a clean recording with one speaker, steady volume, and little background noise. The accepted reference recording is 3–30 seconds, up to 10 MB. Choose a section that represents the delivery you want: a calm explanatory sample is more relevant to a lesson than a shout recorded across a room.
Listen to the reference before uploading it. Music, room echo, overlapping voices, and clipped words make it harder to judge the voice itself. A longer sample is not automatically better if the extra seconds add noise or inconsistent delivery. If possible, record again in a quieter space with a similar distance from the microphone throughout.
Voice Design is the alternative when you want an original vocal character rather than a recreation. Describe qualities a listener can hear, such as a warm or brisk delivery, a conversational style, or a more restrained narrator. Keep the description coherent: combining contradictory directions makes the intended voice harder to define.
Each Voice Design generation creates a new voice. If you find one you want to reuse, download its audio and use a suitable excerpt in Voice Cloning. Keep that reference with your project so later recordings start from the same vocal example instead of a newly generated interpretation of the description.
Build a Conversation with Multiple Speakers
AI Dialogue organizes speech by speaker and line. Use it when the content depends on an exchange: a learner asking a question, two characters disagreeing, or a host interviewing a fictional guest. Assign the lines first, then check that each speaker has a clear role in the scene.
Short exchanges are easier to follow than alternating blocks of exposition. Give one speaker a question or observation that the next line genuinely answers. This creates a conversation with a purpose, rather than a paragraph divided arbitrarily between voices.
Dialogue also supports delivery tags for tone and effects. Apply them where a particular line needs direction, and listen to the result in context. A reaction that works alone may feel exaggerated when placed between two quiet sentences. These dialogue controls belong to the dialogue workflow; they are not a reason to add bracketed instructions to every text-to-speech script.
For educational dialogue, keep the facts in the spoken lines. Delivery can help distinguish speakers, but the explanation should remain understandable without dramatic effects. A listener should be able to identify both the question and its answer on the first pass.
Voiceovers for Lessons, Tutorials, and Character Scenes
A lesson voiceover needs a structure that supports understanding. Introduce the concept, explain one part at a time, and end with the point the learner should remember. Read specialist terms consistently throughout the script. If a name requires a pronunciation adjustment, use the same spoken spelling in later passages.
A product tutorial needs timing and specificity. Replace vague phrases such as “do this next” with the action being shown. Keep the narration focused on the part of the interface visible at that moment. After downloading the audio, check it against the screen recording in your video editor; generating speech does not automatically synchronize it with an existing timeline.
A character scene depends on recognizable voices and believable turns. Establish the contrast between speakers through voice choice and writing before adding expressive delivery. One character might use short, practical sentences while another asks more exploratory questions. That difference remains audible even in a restrained performance.
For a series, save the approved script conventions and audio references with the project. Consistent names, introductions, and pronunciation decisions make the next episode easier to prepare. You can then evaluate new recordings against a clear reference instead of relying on memory.
From Text to Speech to a Talking Avatar
Choose text to speech when you need an audio track. If the same narration should be delivered by a visible presenter, continue with the AI avatar video generator. That workflow combines a portrait with a script or uploaded audio to create a talking photo.
Finish reviewing the narration before building the avatar video. An unclear sentence or mispronounced name is easier to correct while it is still an audio decision. Once the voiceover communicates the message well, pair it with a suitable portrait and review the resulting video for both delivery and lip sync.