I Wanted to Hear Every Telnyx Voice in One Scene, So I Built a Multi-Character Narrator

Telnyx ships over 700 Ultra voices across 36 languages with sub-100ms time-to-first-byte. The voices are not the problem. Hearing them is.

The docs list three. The Voices API returns 4,000+ across every provider. Voice pickers play a fixed sample sentence per voice. None of that tells you how a voice handles emotion, pacing, or character inside a real scene.

So I built a small app that lets you do exactly that. You write a short scene with a few characters, assign each character a different Telnyx Ultra voice and an SSML emotion, and render the whole thing into one MP3. Every voice speaks in character, in context, in one continuous audio file.

The Telnyx code example is:

https://github.com/team-telnyx/telnyx-code-examples/tree/main/multi-character-narrator-python