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# Voice Design quickstart

This guide will show you how to design a voice via a prompt using the Voice Design API.

## Using the Voice Design API

> **Note**
>
> This guide assumes you have [set up your API key and SDK](/docs/eleven-api/quickstart). Complete
> the quickstart first if you haven't. To play audio through your speakers, you may also need
> [MPV](https://mpv.io/) and/or [ffmpeg](https://ffmpeg.org/).

#### Make the API request

Designing a voice via a prompt has two steps:

1. Generate previews based on a prompt.
2. Select the best preview and use it to create a new voice.

We'll start by generating previews based on a prompt.

Create a new file named `example.py` or `example.mts`, depending on your language of choice and add the following code:

```python maxLines=0
# example.py
from dotenv import load_dotenv
from elevenlabs.client import ElevenLabs
from elevenlabs.play import play
import base64

load_dotenv()

elevenlabs = ElevenLabs(
  api_key=os.getenv("ELEVENLABS_API_KEY"),
)

voices = elevenlabs.text_to_voice.design(
    model_id="eleven_multilingual_ttv_v2",
    voice_description="A massive evil ogre speaking at a quick pace. He has a silly and resonant tone.",
    text="Your weapons are but toothpicks to me. Surrender now and I may grant you a swift end. I've toppled kingdoms and devoured armies. What hope do you have against me?",
)

for preview in voices.previews:
    # Convert base64 to audio buffer
    audio_buffer = base64.b64decode(preview.audio_base_64)

    print(f"Playing preview: {preview.generated_voice_id}")

    play(audio_buffer)
```

```typescript maxLines=0
// example.ts
import { ElevenLabsClient, play } from "@elevenlabs/elevenlabs-js";
import "dotenv/config";
import { Readable } from 'node:stream';
import { Buffer } from 'node:buffer';

const elevenlabs = new ElevenLabsClient();

const { previews } = await elevenlabs.textToVoice.design({
    modelId: "eleven_multilingual_ttv_v2",
    voiceDescription: "A massive evil ogre speaking at a quick pace. He has a silly and resonant tone.",
    text: "Your weapons are but toothpicks to me. Surrender now and I may grant you a swift end. I've toppled kingdoms and devoured armies. What hope do you have against me?",
});

for (const preview of previews) {
    // Convert base64 to buffer and create a Readable stream
    const audioStream = Readable.from(Buffer.from(preview.audioBase64, 'base64'));

    console.log(`Playing preview: ${preview.generatedVoiceId}`);

    // Play the audio using the stream
    await play(audioStream);
}
```

#### Execute the code

```python
python example.py
```

```typescript
npx tsx example.mts
```

You should hear the generated voice previews playing through your speakers, one at a time.

#### Add generated voice to your library

Once you've generated the previews and picked your favorite, you can add it to your voice library via the generated voice ID so it can be used with other APIs.

```python
voice = elevenlabs.text_to_voice.create(
    voice_name="Jolly giant",
    voice_description="A huge giant, at least as tall as a building. A deep booming voice, loud and jolly.",
    # The generated voice ID of the preview you want to use,
    # using the first in the list for this example
    generated_voice_id=voices.previews[0].generated_voice_id
)

print(voice.voice_id)
```

```typescript
const voice = await elevenlabs.textToVoice.create({
    voiceName: "Jolly giant",
    voiceDescription: "A huge giant, at least as tall as a building. A deep booming voice, loud and jolly.",
    // The generated voice ID of the preview you want to use,
    // using the first in the list for this example
    generatedVoiceId: previews[0].generatedVoiceId
});

// The ID of the newly created voice, use this to reference the voice in other APIs
console.log(voice.voiceId);
```

## Next steps

#### [Instant voice cloning](/docs/eleven-api/guides/how-to/voices/instant-voice-cloning)

Clone a voice from existing audio instead of generating one from a description.

#### [API reference](/docs/api-reference/text-to-voice/design)

Full Voice Design API reference and parameters.

> ElevenLabs provides APIs and SDKs for text to speech, voice cloning, speech to text, sound effects, voice isolator, voice changer, and conversational AI agents. Build voice-enabled applications with lifelike audio generation.