Voices & speech synthesis
Every voice agent has a speaking voice, and you pick it from the gallery. The voice you choose decides the synthesis behind it, so there is no separate engine to set. Play a few previews, find one that fits your brand, and select it.
The voice gallery
The gallery lists every voice available to your workspace, each with a play button so you can hear it before choosing. Voices are grouped by family to make browsing easier, and each one is marked for where it can be used: the classic pipeline, realtime mode, or both. Some voices work in both, so the same voice can carry across a classic agent and a realtime one.
Voice families
Voices come in families, and each family has its own character. When a family also offers a choice of model, you make that choice in the bot's speech settings.
| Family | Notes |
|---|---|
| Aura | Clear, natural voices for the classic pipeline. |
| Sonic | Expressive voices with fine tuning for speed, volume, and emotion. The newer Sonic 3.5 model is selectable in the bot's speech settings. See Voice tuning. |
| ElevenLabs | Highly expressive voices with style and speed controls, plus a low-latency mode worth using on phone agents. |
| Azure | A broad set that includes high-definition voices and dedicated Urdu voices. |
Importing more voices
Administrators can bring in additional voices from a provider's catalog. When a voice is imported, Hania records a short preview in the voice's own language automatically, so it is ready to audition in the gallery straight away with nothing to upload by hand.
Shaping how a voice sounds
Once a voice is chosen, its tuning card appears in the bot settings with only the controls that voice supports. Sonic voices expose speed, volume, emotion, and pronunciation; ElevenLabs voices expose style, speed, and a low-latency mode. Ranges, defaults, and examples are on the Voice tuning page.