Windows 10: Various high-pitched ringing noises after sounds are played

I use my headphones whenever I use my laptop, and the headphones aren't causing this problem (I tried them on my phone and other computers). I have laptop that, for some reason, plays high-pitched ringing after a sound is played (like a video or notification) and the ringing won't stop until another sound is played. The ringing doesn't happen when a sound is played, just after. This only occurs when I use the audio jack, so I've been using a USB-to-audio jack adaptor for the past few months to escape the ringing. The ringing varies in tone, but it's always high-pitched. Here's a crude example *Huh

eeeeeeeeeee *notification sound* EEEEEEEEEEEE *music plays* eeeeeeeeeeeeeeeeeee *silent moment in a movie* EEEEEEEEEEEE

Does anyone know what could be causing this? Again, it's just the audio jack. If I use an adapter to use my headphones, there's no ringing. The drivers are all up to date. The audio driver is the Synaptics Audio from Microsoft (version 10.0.18362.1). There's also a program called SmartAudio 3 installed

Laptop: Acer Swift SF514-54T
Windows 10 Version 1909

:)

 

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High pitch noise when audio is activated.

I have external usb audio interface (RME Fireface UCX). I have my speakers connected to it.

Whenever i play music or video (volume at 0%, otherwise i would not hear it) the speakers make this high pitched noise. When i stop the audio (or youtube video), after about 10 seconds the noise stops with barely audible "beep" in the end. Like something
from electronics is "bleeding" through.

Just discovered, when i close the tab, the noise stops after 1 sec. It also happens when windows sounds play. (or when i hit "test" button when selecting windows sounds in control panel) After 1 sec, the "beep" and it quiets down.

My volume control does not affect the noise volume.

The same setup/pc is quiet with another operating system. (osx)

No noise in the headphones.