Microsoft has spent the past two years adding flashy new productivity features to Teams, and now the company is overhauling how the fundamentals work thanks to AI. We've all been on a call where someone has poor room acoustics making it hard to hear them, or seen two people try to talk at the same time creating an awkward "no, you go ahead" moment. Microsoft's new AI-powered voice quality improvements should improve or even eliminate these day-to-day annoyances. Microsoft is now using a machine learning models to improve room acoustics so you'll no longer sound like you're hiding in a cave. "While we have been trying our best with digital signal processing to do a really good job in Teams, we have now started using machine learning for the first time to build echo cancellation where you can truly reduce echo from all the different devices," explains Robert Aichner, a principal program manager for intelligent conversation and communications cloud at Microsoft, in an interview with The Verge. Microsoft has been testing this for months, measuring its models in the real world to ensure Teams users are noticing the echo reduction and improvements in call quality.

Last month, Microsoft announced that Teams, its competitor to Slack, Facebook's Workplace, and Google's Hangouts Chat, had passed 44 million daily active users. The milestone overshadowed its unveiling of a few new features coming "later this year." Most were straightforward: a hand-raising feature to indicate you have something to say, offline and low-bandwidth support to read chat messages and write responses even if you have poor or no internet connection, and an option to pop chats out into a separate window. But one feature, real-time noise suppression, stood out -- Microsoft demoed how the AI minimized distracting background noise during a call. How many times have you asked someone to mute themselves or to relocate from a noisy area? Real-time noise suppression will filter out someone typing on their keyboard while in a meeting, the rustling of a bag of chips (as you can see in the video above), and a vacuum cleaner running in the background.