Hi @Nate Smith
Currently, the ability to use speech-to-text in Teams chats isn't supported. To get this feature more quickly, I have found feedback in Teams User Voice, and you could vote for it. Many features of our current products are designed and upgraded based on customers’ feedback. With requirements like this increase, the problem may well be released in the future.
Feedback: Speech to text in Microsoft Teams
Thanks for your understanding and patience!
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