I see this is a laptop. Can you connect using the Ethernet port/cable rather than the wi-fi for testing? If you can, disable the wi-fi controller and use the wired and see if you still have the sound problem. Wi-Fi adapters are one of the prime causes of noise. If you look through the many posts here, you will see pops/cracks are a frequent complaint (with both laptop and desktop systems).
Also, make sure you are using the Samsung supplied Realtek sound driver
, non-vendor sound drivers
can also be a problem.