Music Teacher - I can't hear my students play

Yes. I changed the audio settings.  “Original sound for Musicians” wouldn’t work, so I changed the setting to “zoom optimized audio” & I used the “Low” setting. It worked for a piano lesson. I still have to try this setting with a group in the same room on the other end of zoom. 

Make sure your students use the same setting on their devices. The noise filtering happens at the source microphone. 

I've also struggled immensely with hearing my students since the update, despite spending time troubleshooting audio options with them. I've even needed to reschedule some lessons. I'm relieved to have found the solution in the replies to this post.