So, 2 weeks ago, I bought the rode NT1, with a 48 V power supply and a xlr to jack adapter. But when I listen to myself through the microphone, I hear my voice but it's very low and I hear a very loud background noise. But it's like it's coming from inside of the computer. Because, I tried to remove the power supply and the microphone and I've plugged the xlr to jack adapter in the computer without the xlr being plugged in anything and when I listen to the "microphone" in my settings, I hear the same background noise. So I'm sure the noise is not coming from the microphone or the power supply. So what can it be? What is causing the background noise?