I have a Sony Vaio F laptop, that I have connected to its AC power adapter. I also have a analog headset, and whenever I talk through the microphone, the person on the other end hears a buzzing noise. Is there any way I can fix this issue?
I have bought an external sound card to see if that would fix the issue, but it did not. I also wanna note that when I UNPLUG the AC adapter and run straight off the internal battery, the humming goes away.
The AC Adapter I am using is 2prongs and it has a ferrite filter on it.