At any point while logged into Teams, you can edit your audio settings by navigating to the drop down menu under your profile picture. Here you can edit your default settings, including audio device, speaker and microphone settings. Here you also have the ability to make a test call to confirm the settings are right for you.
Before Joining a Meeting
While joining your next Teams call, the "Join Now" screen allows you to toggle on/off your video, background or microphone. You'll also have the ability to view and edit your audio settings before you dial into the call.
During a Meeting
Forget to edit your audio settings ahead of time? No worries! At any point during your next meeting, you can navigate to "Show Device Settings" under the overflow menu (3 dots) where you can find and edit the same audio settings as outlined above.