This has to be caused by a rotating part, and that involves tires and brake rotors. A warped rotor can cause the caliper to slide back and forth on its mount, but that will not change when turning slightly. The noise typically gets worse during light braking.
A broken belt in a tire is a better suspect. When that occurs slowly enough over a long period of time, the tumor, or hump that develops can wear down, so at first glance, the tread looks okay. If you have the tires inspected at a tire and alignment shop, they will look closer at the grooves in the tread for signs of a broken belt. The squirming tread can make a rubbing noise as it slides across the road surface.
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Monday, June 26th, 2017 AT 3:28 PM