Macbook's speakers "pop" when entering stand-by mode

On my MacBook Pro (13-inch, 2017) I have noticed a problem with popping sound. It happens both on running on AC adapter and battery: Macbook makes light pop sound (like from static electricity) from left or right speaker (this is random) after stopping playback of any audio – when speakers enter stand-by mode (turn off). Here is a video with that sound: https://youtu.be/H2gxz53QTZ4 (+ comments) and here is some discussion on this topic: https://www.ifixit.com/Answers/View/378356/Strange+pop+sound+sometimes https://www.reddit.com/r/macbookpro/comments/714kae/does_your_macbook_pro_2017_pop_after_audio/ I tried SMC and NVRAM reset, I also reinstalled MacOS (to High Sierra, now I'm back on Mojave) but with no help. When I have headphones connected to Macbook, then in exactly same time (entering stand-by after audio playback) I can also hear some unexpected sound – like disconnecting headphones from power. Do you have same experience with your Macbook? Is there any possibility to modify stand-by setting? Somebody tried to work around this by writing antipop script: https://www.tomsick.net/projects/antipop.html But I don't want to disable stand-by completely, so this program is useless for me.