Steve Young has more than 40 years of research experience in speech processing and AI. He founded a number of speech technology startups including Entropic acquired by Microsoft in 1999 and VocalIQ acquired by Apple in 2015, following which he worked in the Apple Siri Development team. He is a Fellow of the Royal Society, the Royal Academy of Engineering, the IET and the IEEE. He holds an IEEE Signal Processing Society Technical Achievement Award, the ISCA Medal for Scientific Achievement, a European Signal Processing Society Technical Achievement Award and the IEEE James L. Flanagan Speech and Audio Processing Award.

'Hey Cyba is based on the author's long history of research and his rich experiences of developing various voice assistant systems. With the current rapid progress and wide deployment of AI-based voice assistant systems all over the world, the publication is very timely, and the book has a very unique and interesting writing style. I strongly recommend it to anyone interested in this area.' Sadaoki Furui, Toyota Technological Institute at Chicago

• 1. May I introduce myself?; 2. My inner workings; 3. How my brain works; 4. Knowing what I know; 5. What did you say?; 6. What does that mean?; 7. What should I say next?; 8. Listen to me; 9. How do you say that in…?; 10. Let's chat; 11. Can you trust me?; 12. When all is quiet; 13. Future upgrades and beyond; Glossary; Notes; Index.

Steve Young has more than 40 years of research experience in speech processing and AI. He founded a number of speech technology startups including Entropic acquired by Microsoft in 1999 and VocalIQ acquired by Apple in 2015, following which he worked in the Apple Siri Development team. He is a Fellow of the Royal Society, the Royal Academy of Engineering, the IET and the IEEE. He holds an IEEE Signal Processing Society Technical Achievement Award, the ISCA Medal for Scientific Achievement, a European Signal Processing Society Technical Achievement Award and the IEEE James L. Flanagan Speech and Audio Processing Award.

'Hey Cyba is based on the author's long history of research and his rich experiences of developing various voice assistant systems. With the current rapid progress and wide deployment of AI-based voice assistant systems all over the world, the publication is very timely, and the book has a very unique and interesting writing style. I strongly recommend it to anyone interested in this area.' Sadaoki Furui, Toyota Technological Institute at Chicago

• 1. May I introduce myself?; 2. My inner workings; 3. How my brain works; 4. Knowing what I know; 5. What did you say?; 6. What does that mean?; 7. What should I say next?; 8. Listen to me; 9. How do you say that in…?; 10. Let's chat; 11. Can you trust me?; 12. When all is quiet; 13. Future upgrades and beyond; Glossary; Notes; Index.