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###### Podcasts

###### Nov 13, 2025

# From Text to Lifelike Speech: Cartesia's Co-founder Arjun Desai On Voice and AI Agents

Today I’m proud to announce that my car has been promoted. It is no longer just a car. It is now… a podcast studio.

Introducing Skywatch — [Bluejay (YC X25)](https://www.linkedin.com/company/get-bluejay/)'s new podcast that takes a bird's eye view on conversational AI filmed inside my very real, very un-soundproof vehicle while driving around SF.

For episode one, we welcomed [Arjun Desai](https://www.linkedin.com/in/arjun-desai-4a731ba4/), co-founder of [Cartesia](https://www.linkedin.com/company/cartesia-ai/) to hop in the passenger seat and talk about building insanely fast, insanely high-quality voice systems… while I try not to hit a cyclist.

We covered:

🔹 Why Sonic 3 actually changes the game in voice AI

🔹 What “first-principles thinking” looks like when you’re shipping real models

🔹 The trade-offs behind speed, quality, and realism

🔹 The future of voice agents and what still needs to be solved

Check it out on Spotify: [Click Here](https://lnkd.in/gWDmscdX)