We’ve added Azure Neural HD voices to our text‑to‑speech lineup. With this update, you can pick from a wider range of crisp, expressive voices, all accessible through the same Telnyx Programmable Voice API.
Human‑like speech generation: Trained on millions of multilingual utterances, Azure Neural HD voices produce natural pacing, rhythm, and emotion
Conversational realism: Automatically reproduces spontaneous pauses, emphasis, and filler words so interactions sound like live dialogue.
Dynamic variation: Introduces subtle variations in every delivery to avoid robotic repetition and keep listeners engaged. More choice, less lock‑in: Toggle between Telnyx voices and Microsoft Azure Neural HD voices with a single request parameter. No new contracts or infrastructure changes.
Bring your own carrier (BYOC): Continue routing calls over the carrier of your choice using the existing API key. Your voice, your network.
Transparent, pay‑as‑you‑go pricing: TTS Azure HD: $0.000045 per character, so you only pay for what you use.
Voice quality directly shapes caller behavior. Natural‑sounding speech cuts hang‑ups and increases survey completion rates. Azure HD gives you that extra clarity for premium real-time voice interactions, while other options keep routine traffic within budget. You can choose voices that fit best with the intent.
Follow these steps to start using Azure HD voices.
Azure.en-US-Emma:DragonHDLatestNeural
For more details visit our developer documentation and start building today .