Question Static hissing

May 2, 2020
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I bought a Pyle pmxu83bt mixer and can't get this static hissing noise to go away I've tried everything I could think of to stop it. I don't know much about audio and how to set it up but I did get the mic to turn on and I have the board connected to my computer through a USB connection. So if anyone has a possible fix please let me know thank you.