> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ultravox.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview: Voices

> Voice options available in Ultravox Realtime

Ultravox Realtime offers three ways to customize how your AI agents sound:

## Built-in Voices

Ready-to-use, high-quality voices for all supported languages. Perfect for getting started quickly.

* Try them in the [Voices explorer](https://app.ultravox.ai/voices)
* Browse all options via the [List Voices API](/api-reference/voices/voices-list)

## Voice Cloning

Create custom voices from audio samples to match your brand or requirements.

* Upload a 30-60 second audio sample
* Get a unique voice that matches your sample's characteristics
* Learn more: [Voice Cloning Guide](/voices/cloning)

## Bring Your Own TTS

Integrate your preferred TTS provider for specialized needs or existing investments.

* Supports ElevenLabs, Cartesia, OpenAI, and many others
* Complete control over voice generation
* Learn more: [Bring Your Own TTS Guide](/voices/bring-your-own)

## API Reference

For complete voice management documentation, see the [Voices API Reference](/api-reference/voices).