Hello, I am new here; just found your site. Doing some home studio recording for a podcast related to my work-- I've been out of Audio production for about 15 years (used to do small market FM radio); i've kept up with tehnology - somewhat. So, I have a small studio set up, I'm using a Behringer Xenyyx 802 6-channel input mixer, a (cheap) handheld vocal mike on a boom stand connected w/an xlr to 1/4 inch phono jack (yeah, not ideal at all, I know) which eventually (soon) I'll upgrade to a nicer Sterling Audio ST55 Large Diaphragm FET Condenser Mic, an Alesis L/R 1/4 inch to usb input connection to my computer, and AVS Audio editor to record my files (which I've used for 2 years on many projects and its been great!). When I play back the recording, I get this enormous (not overpowering) hum in the background. I was also getting it with my previous I/O connection which was L/R 1/4 inch adapters to L/R RCA conection to a 3.5mm connection into the mic input on the front of my laptop, and i thought the usb direct input would resolve that -- it did not, and thus my introduction to the forum at recording.org. Would someone with much more knowledge and experience in this arena please give me some pointers? I'm learning again after a long-time, and i could use some guidance. Thank You!