In this week’s vBrownBag, Principal Software Engineer Dominik Wosiński takes us on a deep dive into Amazon Nova Sonic — AWS’s latest speech-to-speech AI model.

Dominik explores how unified voice models like Nova Sonic are reshaping customer experience, DevOps workflows, and real-time AI interaction, with live demos showing just how natural machine-generated speech can sound.

We cover what makes speech-to-speech difficult, how latency and turn-detection affect conversational design, and why this technology marks the next frontier for AI-driven customer support.

Stick around for audience Q&A, live experiments, and insights on where AWS Bedrock and generative AI are headed next.

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Timestamps

• 00:00 – Intro & catching up with Eric Wright


• 05:00 – Meet Dominik Wosiński & Halo Radius


• 06:15 – Why speech-to-speech matters


• 10:00 – Challenges with chatbots and customer experience


• 15:00 – Latency, realism, and the human connection


• 20:00 – Evolution of synthetic voices (“Jennifer” demo)


• 25:00 – Why speech is hard for computers


• 30:00 – Architecture of speech-to-speech systems


• 40:00 – Inside Amazon Nova Sonic


• 48:00 – AWS Bedrock integration & limitations


• 52:00 – Pricing, tokens, and performance


• 55:00 – Lessons learned from real customer projects


• 57:00 – Live demo of Nova Sonic in action


• 01:04:00 – Q&A and closing thoughts

How to find Dom:

https://www.linkedin.com/in/dominik-wosi%C5%84ski-b27535b7/