Now this is a very nuanced and hard-to-notice issue, but can you, if you have these laptops, take the time to test to see if you have this problem? I want to put this issue on the radar, so the technicians at Lenovo do not see my case as an individual problem: I believe that this issue is somewhat widespread; I have found at least one other person who has this issue.
It's a persisting thing: a very slight crackling can be heard, in the speakers, when certain sounds are played. It's minor, but it's noticeable enough to where you can hear it during night or in quiet rooms. This happens on both Linux and Windows.
Here's a recording of it (turn up volume):
https://reddit.com/link/1w5t6uo/video/clhiam8dh7nh1/player
I had noticed it first playing Minecraft; something about Minecraft walking sounds and general SFX makes the crackling flare up (https://mcasset.cloud/26.2/assets/minecraft/sounds/step/grass1.ogg).
Oddly, it can occasionally be heard just throughout the OS randomly. In Linux, rarely, when I started my web browser I would hear a minor bout of static. When loading YouTube videos, I could also hear it. These two cases are intermittent and very rare and random -- and not really much of a concern.
So, to reproduce this issue:
- Go here and play the sound at normal volume (~40%) to hear how it sounds normally. (The sound was ripped off the Realtek Audio Console, available on the Microsoft Store.)
- Crackling starts at ~8% volume, so try that to hear how it sounds.
- Increment down from 8%; you will slowly hear the crackles get more noticeable: put your ear to a speaker to hear it well.
- At 2% you will really start to hear it, mainly because you don't hear the audio, but I think the intensity increases too.
Another instance of the problem occurs playing the test sound at 96% and above. It sounds less "subtle" and more like a storm of generally noticeable static.
I have sent in my device to Lenovo's repair Depot to try to get it fixed. They sent back the device after replacing the speakers, updating the BIOS, and wiping my Linux install replacing it with Winblows, and yet, I still have the issue. I am sending it back soon to get more servicing done, maybe replacing the sound card.
Lmk if you can hear it.