---
title: Create Custom TTS Voices with Voice Design Lab | Telnyx
canonical: https://telnyx.com/release-notes/custom-tts-voices-voice-design-lab
---
# Create Custom TTS Voices with Voice Design Lab | Telnyx

[Release notes](https://telnyx.com/release-notes)

# Create custom TTS voices with Telnyx Voice Design Lab

### 13, Mar 2026

Our new Voice Design Lab lets developers create custom text-to-speech voices using Qwen 3 TTS. Generate voices from natural language prompts or clone them from short audio recordings, then use them across Telnyx voice and TTS services.

## What’s new

* **Prompt-based voice design:** Describe tone, gender, or style to generate a new synthetic voice.
* **Voice cloning from audio:** Upload or record a short sample to reproduce a voice identity.
* **Cross-product voice usage:** Use custom voices in AI Assistants, Call Control `speak`, and the TTS API.
* **Multilingual synthesis:** Generate speech in multiple languages using the same voice profile.
* **Portal-based workflow:** Create and test voices in the Voice Design Lab interface.
* **API voice management:** Create voice clones programmatically using the voice clone endpoint.

## Why it matters

* Reduces time required to create branded or consistent voice experiences.
* Simplifies voice generation without training datasets or studio recording.
* Improves control over speech identity across AI agents and telephony workflows.
* Enables consistent voice output across languages and applications.

## Example use cases

* Customer support agents that use a consistent brand voice.
* Appointment reminders generated with a cloned human voice.
* AI assistants that speak with a custom persona.
* Interactive IVR systems with a unique voice identity.

## Getting started

1. Open **Voice Design Lab** in the [Mission Control Portal](https://portal.telnyx.com/#/ai/assistants).
2. Choose a creation method: **Design a voice** with a prompt or **Clone from audio**.
3. Record or upload a short audio sample if cloning.
4. Generate and test speech using the built-in playback tool.
5. Select the new voice in **AI Assistants**, **Call Control `speak`**, or the **TTS API**.

You can also create voice clones programmatically using the voice clone API endpoint described in the developer documentation.

**Learn more** in our [developer documentation](https://developers.telnyx.com/docs/tts-stt/voice-design-lab/index) or contact your Telnyx team.

[Start building](https://telnyx.com/sign-up)

### Ask AI

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