Microsoft has closed its $19.7 billion takeover of speech-tech company Nuance Communications. It announced the acquisition last April and cleared the final regulatory barrier this week when the UK’s Competition and Markets Authority signed off on the deal. Regulators in the EU, US and Australia rubber stamped the buyout last year.Mark Benjamin will remain as Nuance CEO, though he now reports to Microsoft Cloud and AI executive vice president Scott Guthrie. The duo wrote in a blog post that Microsoft and Nuance will build on "AI, digital and cloud advancements to create solutions that transform how we – as global citizens – work, shop, bank, engage and receive care." Healthcare will be a major focus of their work.Microsoft has another massive deal in the works: its proposed $68.7 billion takeover of Activision Blizzard. It expects the deal to be completed by mid-2023 if regulators give the thumbs up.