Squealing or siren-like sounds?

Fluid is at the right level. Plus it probably only has about 2000 miles on it. I suppose I could drop the pan and take a look at the filter. Just trying to get a general consensus if you guys think it's likely a tranny problem. I can't imagine anything in the engingine making a noise like this. What would? Engine oil pressure is 60-70 psi at normal driving speeds, goes down to 30 psi at idle.