How do I completely kill the sounds from the spotlighted speakers on my iPad?

[deaf258]

Zoom is not very accessible for Deaf students like me. Every time I join a meeting or a class, I must use an iPad with my MacBook so that I can pin the interpreters to full screen on my MacBook's Zoom app while the iPad Zoom is set to automatically spotlight whoever is speaking or showing the slides. The sounds on both MacBook and iPad are already disabled, but whenever a zoom meeting starts, it bumps up the iPad's sounds.

I got in trouble in the library today because I didn't hear it and got scolded by the staff. I know I turned the volume off before I started the meeting but for some reason the Zoom app forced the volume back on. How do I completely kill the sound from the iPad zoom app? I need the sounds disabled so I can use the iPad for my class this semester or else my grades will suffer.

My iPad is Mini 6th generation with latest iOS and latest Zoom app.