What will cause a growling noise in the driver's side front end? on 2001 Pontiac Grand Prix

It started shortly after replacing the tires, and the frequency of the growl/whine increases as the tire speed increases only, not the rpm's. The noise disappears when the wheel is turned. I checked the CV boots and they look good. There doesn't appear to be anything rubbing, but it sounds a little like the tread on the tire rubbing on something. Tires are not worn, and don't show any signs of rubbing on anything.

Asked by for the 2001 Pontiac Grand Prix