I'm having 2 issues with zoom meeting audio. I teach singing so have the 'original sound for musicians' clicked on zoom. Everything else unselected. 

Issue 1; Only with certain clients (2/20), it's always the same 2 clients, we experience a hissing sound that becomes unbearable very quickly, unless either one of us hits mute on our mics. We needs to do this every few minutes so the sound returns to normal then gradually builds again. As mentioned, the sound is perfect for all other clients so I'm reticent to change my hardware (add a mic etc). as I also use an external musical keyboard so don't want to set up an extra mic and usb for the keyboard and use logic or anything. I would like the simple Mac set up that works for all my other clients to also work with the 2 who are experiencing issues. Any ideas of things we can try?

Issue 2; I experience sound loss with one of my clients (out of 20) when she sings higher in pitch. She has the same setting as me; just 'original sounds for musicians' selected. I am assuming this is something to do with her Mac settings as we experience the same issue with all other online video conferencing softwares.... but does anyone have any idea what it could be?

Thanks Jen

Having a large meeting today on Zoom and students were assigned breakout rooms that should 

automatically move the participants to a breakout room. There are 150 participants it took a long time for the system to move each participant to their preassigned breakout room. The lag was so bad that we started to move them ourselves. Is this normal for the Zoom system to lag so much on moving participants to their assigned breakout rooms?

Hi, whenever I go from share screen/computer audio then stop share/normal audio the sound always drops out and everyone has to leave the room and come back in to fix the sound. I have this is lots of other people's zoom meetings also where they use this feature.  Can anyone help sort this?

Thanks Jen

Hello,
I would like to understand why participants can access Zoom meetings by telephone via freephone numbers when there is a €100 per month offer to obtain the meeting option by telephone.
Are these free numbers absolutely free from any landline or mobile phone?
Thank you for your answers.

I updated on Tuesday as requested and since then I am unable to launch meetings without going through the browser. I've uninstalled and reinstalled Zoom three times and now reset my laptop too, but it's still the same. Can anyone tell me why this might be happening and how I can fix it?