Create custom TTS voices with Telnyx Voice Design Lab

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.