test my mic

https://remote-wiki.win/index.php/How_to_Run_an_Audio_Input_Test_and_Get_Meaningful_Results

Before the virtual meeting starts, I always do the 'one, two, three' thing and ask if everyone can hear me clearly. It's that classic tech check where you tap your headset or speak in a slightly awkward voice just to make sure your audio's working for the call without any static or echo.