STEP 1
Open the Chrome Browser Settings button (top right), then select Settings.
STEP 2
Click on Privacy and Security then Site Settings.
STEP 3
Click on View Permissions and Data Stored Across Sites
STEP 4
Enter "teams.microsoft.com" in the Search field.
STEP 5
Expand the "Microsoft.com" group and scroll down to find "teams.microsoft.com" and select it.
STEP 6
Set the Microphone to Allow access to this device.
STEP 7
Set the Sound to Allow access to this device.