Give each character in your game a voice that fits: a gruff blacksmith, a nervous scout, a hero with a calm edge. Pick a preset, describe a voice in words or clone one you own, then direct the delivery line by line and keep it consistent from the first bark to the last cutscene.
A game with forty named characters and one narrator voice sounds like a school play. Players forgive plain art long before they forgive a blacksmith who sounds exactly like the queen. Text-to-speech models can now give every NPC and hero a voice of their own, in a prototype afternoon rather than a casting month, and this page shows how to choose, direct and keep those voices consistent.
Voice is the fastest way to tell characters apart. A player who cannot see a speaker, because the camera moved or the text box is off to the side, still knows who is talking when the voice carries age, temper and attitude.
Text-to-speech fills that gap in a practical way. You can put real spoken dialogue into a prototype, test whether a scene's timing works when the lines are heard instead of read, fill a game jam build with barks and greetings, or voice a narrator while you wait for the final cast. Picasso IA lists 24 text-to-speech models among its 502, including elevenlabs/v3 and qwen/qwen3-tts, and they all run in the toolkit, so auditioning three engines for one character costs a few minutes. New accounts get free credits to try it.
Not every character needs the same treatment. A shopkeeper with six lines can take a preset, while the hero who speaks for ten hours deserves a voice built for them. These are the four levers you have, and the table shows when each one fits.
| Approach | How it works on Picasso IA | Best for | Watch out for |
|---|---|---|---|
| Preset voice | Pick a stock speaker: elevenlabs/v3 offers 25+ voices, qwen/qwen3-tts offers nine | Prototypes, shopkeepers, guards, crowd lines | Two unrelated characters can end up on the same preset |
| Voice design | Describe the voice in plain words in the voice design mode of qwen/qwen3-tts | Monsters, spirits and heroes that no stock voice fits | A description is a brief, not a recipe: keep the takes you like |
| Voice clone | Give qwen/qwen3-tts or minimax/voice-cloning a short reference recording | Your own voice, or an actor who agreed in writing | Only voices you own or have permission to use |
| Style direction | The style slider in elevenlabs/v3 or the style instruction in qwen/qwen3-tts | One voice in different moods: calm, angry, afraid | Pushing the setting too far can make a voice stop sounding like itself |
Voice design is the lever that matters most for games. Real stock voices are built for narration and explainers, while characters are exaggerated by nature: a goblin treasurer, a retired knight with a cracked voice, a ship's computer that is trying to sound friendly. Writing a short description, such as an old woman with a dry, amused rasp who speaks slowly, and hearing a take in seconds is a very different way to cast.
This is the loop that works for a cast of three or a cast of fifty. It assumes you already have dialogue written, even rough dialogue.
A text-to-speech model reads what you type, so the text itself is your main direction tool. Punctuation sets rhythm: a comma is a short breath, an ellipsis is a hesitation, a line break is a pause. If a made-up name comes out wrong, spell it the way it sounds, so Zephyros might become Zef-ih-ross, and keep the phonetic spelling in your voice sheet.
Beyond the text, the models give you real controls. In elevenlabs/v3 you can set stability, style exaggeration and speed, and you can pass the previous and next line as context so the intonation fits the sentence boundary. In qwen/qwen3-tts a style instruction accepts plain cues like speak slowly or excited tone. Change one control at a time and keep notes, otherwise you will never know what fixed the take.
Direct for the moment, not for the character. A hero who whispers because enemies are close and a hero who whispers because she is grieving need two different lines of direction, and both use the same voice. Write the situation into the style cue, not just the emotion word.
Length matters too. Short barks, like a guard saying halt or a merchant saying welcome, are the easiest to generate well and the cheapest to redo. Long cutscene monologues have more room to wobble in the middle, so split them at natural breaths, generate each part with its neighbors as context, and join the audio in your editor.
The most common failure is not a bad voice, it is a voice that quietly changes. The innkeeper in chapter one and the innkeeper in chapter six should be the same person, and with generated audio that only happens if you make it happen.
Treat each character like a small asset with its own settings. Generate all of a character's lines on the same model with the same voice and the same slider values, and avoid switching engines halfway through a project, because two models never read the same voice description the same way. Keep one approved clip per character as a reference, and when you add lines months later, compare the new take against it before it goes in the build. If you use a cloned voice, the reference recording is the anchor, so store it with the project.
Voice is also one half of a character. The same discipline that keeps a face stable across scenes, covered in consistent AI characters, applies to a voice: one fixed reference, controlled changes. The general voice workflow is in AI voiceover for videos.
Generated voices are a strong tool for the middle of a project and a weaker one for the very top of it. Five places where you should plan around the limits:
None of this rules out the tool. It means the realistic plan is often a mix: AI for the prototype, the many minor roles and fast iteration, and human performers where the story rests on one voice.
Yes. Text-to-speech models turn dialogue text into spoken audio, and Picasso IA has 24 of them in its catalog of 502 models. You write the line, choose or design a voice, and download an audio file you can import into your engine. The quality is good enough for prototypes, jams and many minor roles, and some teams will take it further, but a final judgment on lead roles is yours.
Yes. qwen/qwen3-tts has a voice design mode where you describe the voice in plain language, such as a warm, tired older man with a slight accent, and the model generates a voice from that description without a reference recording. The same model also has a custom voice mode with nine preset speakers and a voice clone mode, so you can compare all three on the same line.
Start with qwen/qwen3-tts voice design when the character does not sound like any stock voice, and elevenlabs/v3 when you want its 25+ voices and its controls for stability, style and speed. Then audition a third candidate from the text-to-speech collection with the same three test lines.
It depends on the model's terms and on where you publish. Commercial use rules differ from model to model, and game platforms and storefronts may have their own requirements about AI-generated content. Read the terms of the model you used, check the current rules of each platform you plan to ship on, and keep a record of which model made which line. If a contract or a lawyer is involved, ask there, since this page is general information.
Fix everything that can change. Use the same model, the same voice name or the same written description, the same language and the same slider values for every line of that character, and write them down. Keep one approved clip as a reference and compare new takes against it. The risky moment is months later, when you add a line and have forgotten which settings you used.
Only with their clear, written permission, and ideally with a contract that covers synthetic use. A clone mode like the one in qwen/qwen3-tts reproduces the characteristics of a short reference recording, which makes it useful for your own voice or for an actor who has agreed. Never clone a real person who has not agreed, and never imitate a known actor or celebrity.
Partly. You can steer delivery with punctuation, with the style slider in elevenlabs/v3 and with style instructions in qwen/qwen3-tts, and shouted, calm and hushed lines are within reach. Extreme emotions, like a real sob or a voice breaking mid-word, are the weakest area, and they usually need several takes. For a story's biggest moment, plan to compare the generated take against a human performance.
qwen/qwen3-tts supports ten languages, including English, Spanish, French, German, Italian, Portuguese, Russian, Japanese, Korean and Chinese, and elevenlabs/v3 lets you change the language code before you run it. Generating the audio is the easy part. Have a native speaker listen to the result, because names, slang and jokes often need adapting rather than literal translation.
Not through Picasso IA. The toolkit generates audio files that you create ahead of time and import into your engine, which suits scripted dialogue, barks and cutscenes. Dialogue that is invented at runtime would need a voice system wired into the game itself, which is a different project.
Generation costs credits, and the cost depends on the model and the settings, so there is no single number. Short lines are the cheapest thing to redo, which is why batching by scene and fixing only the weak takes works well. New accounts get free credits to test your cast, and the current plans are on the pricing page, which is the only place worth trusting for figures.
Your cast is already in your script. Open the Picasso IA toolkit, pick your first character, and hear how they sound before the end of the afternoon.
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