I am having an annoying problem with my ax8. When I play a long note and let it ring, there is an electric sound after 3 second. And when I roll the volume pot to make the volume changing effects, lots of noise has been appeared. I haven't found these problem in real amp. I am quite sure it is around the setting of my input gate. Can anyone teach me how to solve these? I am struggling with recording long sustain notes and knob technique. Is it solvable in digital world?