I have a Acer Laptop (Aspire E 17 E5-773G-715H if that matters) with an Intel Core i7-6500U and an NVIDIA GeForce 940M running Win 10 and I'm annoyed by processor noise made by that notebook.
The noise appears when the laptop is in "idle" state and disappears when I drag a window around or hold down a key while in a textfield.
I already checked everything and can say for sure that the noise does not come from the HDD (Because there is an SSD in it) and neither from the fan. It seems to come from the speaker.
I've recorded audio of the noise in a quiet environment: https://vocaroo.com/i/s0xpEOnqtJ8L (The noise isn't very loud, so you should turn up your volume. Yes, it's safe to listen to it in high volumes on Headphones, etc. No loud noises were made.)
I also already saw this question, which an approved answere were given, saying that it could be the power supply, which here isn't the case.
EDIT: I also tried to disable the main sound device to see if it would make a difference, which it sadly didn't.
Any possible workaround (or maybe even solution) to make it stop is highly appreciated.
Suggestions are also welcome, as they may lead to the solution afterwards.