If you are in a classroom with background noise, such as an air conditioner, changing the Zoom settings for noise suppression can sometimes improve the audio quality for the remote participants.
Hosts AND meeting participants should set their noise suppression to Medium.
3. In the Audio Settings, go to the Audio profile section. Click Medium in the Background noise suppression section.
'Medium' level of background noise suppression has been tested to work best in a classroom with a Meeting Owl and air conditioner.