Making sure the microphone doesn't also become a speaker.

When using the black mike in a classroom it might try to be both the micorphone (which you want) AND the speaker (which you don't want).

If it becomes the speaker, you will only hear the other side faintly, thinking that you can't hear them at all.

Here's how to fix the situation:

1. Right click the speaker icon in the lower right of the computer and choose playback devices





2. Make the Smart Cart (or room) speakers the default speakers.





3. On the Recording tab, right click the Desktop Aver microphone and disable it





4. Left click on the USB microphone and set it as the default, OK.