iPad Pro M1 + QuickTime = Sound Glitches

I have iMac 27" (2019) + iPad Pro M1, it connected through original usb-c cable.

I use QuickTime player on MacOS to get my iPad sound. 

There is a loud buzz/hum, it happens every 30 seconds.

I'm able to get iPad sound, but this buzz/hum every 30 seconds is very loud.

I just open QuickTime on my MacOS iMac, I click New sound Recording, and then I select my device iPad Pro M1. So this way I able to get my iPad sound, And it works, But with huge Glitches: every 30 seconds there is annoying buzz/hum.

I’m doing Gaming Live Stream, so I need to capture my iPad screen with Sound.

Earlier I had iPad Mini 5, I did absolutely the same thing, and I never had this problem.

I decided to upgrade to iPad Pro M1, and now this annoying problem.

I tried to replace USB-C cable, I tried everything. And nothing helps.

There is a lot of people who have absolutely the same type of problem:

https://discussions.apple.com/thread/252832889

https://discussions.apple.com/thread/252990306

https://discussions.apple.com/thread/252791552

So, this problem not only with my personal device iPad Pro M1, this problem exist for All iPad M1 users.

This problem exist for a lot of months, since long ago, and Apple don’t care to fix this glitch!

That’s disgusting.

What we can do about this?