How Alexa works. AI+ML+ASR+NLU and more!
They say you live in dog years when your at Amazon. I've certainly found that to be true over the last few years in the Alexa group leading the product team building new products and experiences for the automotive industry. I've needed the 7:1 dog:human ratio to ingest the culture of Amazon and the tech of Alexa! For this blog post, I'll summarize what I've learned about how Alexa works. When you say "Alexa," what exactly happens? It's not just a signal whizzing through the air; it's the culmination of years of artificial intelligence research and development. Let's take a journey through the AI that powers Amazon's Alexa Voice Service, unfolding the layers of technology that make it possible for Alexa to respond with more than just a robotic "I didn't catch that." Picture yourself asking Alexa to play your favorite song. The moment the microphone picks up your voice, a complex process kicks off. The first step is Automatic Speech...