Cracking speaker noises when adjusting volume

Before ruling them out, have you tried using another external keyboard & mouse, other than these? Also are these devices, wired or wireless? If wireless, do they use Bluetooth or a propriety protocol (like Logitech's Unifying)?

As far as forwarding this to the development team, we are not Apple employees here. Apple representatives, may or may not, respond to posts.

Ref: Bug Reporting - Feedback Assistant for Developers - Apple Developer

If I understand you current set up, your monitor has USB ports that you have both the Unifying Receiver (for the wireless mouse) & wired keyboard connected to. In turn you have your notebook "docked" to this monitor ... correct? Are you using a docking station for this purpose?

Typically, when you here "crackling" noise when adjusting volume the culprit is a faulty volume control. Back in the old days this was a electromechanical potentiometer. We're obviously well beyond that now-a-days. Where are you adjusting the volume: at the notebook, the keyboard, or the monitor ... or somewhere else?

Since most of us do not have your particular set up, it will be hard to duplicate the issue you are having. All I know at this point, is that your Mac works fine with nothing attached, but has these issues with these peripherals. I understand that you are saying that this was working fine before, but I'm a bit perplexed to understand how an OS update would have changed this. Of course, anything is possible.

I am facing the same issues on my device and I don't use any external devices so I don't think the external devices that you are using are causing the issue...

Also, the same thing happens to me when I restart the device...the issue does go away for like a day then it comes back. It must be the new update :/

I have the exact same issue under Big Sur 11.5.1 with a MacBook Pro M1. I can't exactly pinpoint the version it started to behave like this. A reboot fixes the issue temporarily. Updating to 11.5.2 currently.

Dear Devs, please have a look into this. :)

I have the same problem on my Mac Pro M1 , its happening even without having anything connected to it . happens every time I have music/sound on and I press the caps lock button and the speakers crackle. and it definitely happened after the latest 11.5.1 iOS update. send help



Try updating to MacOS 11.5.2.

I'm having the same issue and I use no external devices! It happens when I press caps lock or press the unmute button on the touch bar, have you found a solution yet? My mac is up to date