2003 Oldsmobile Alero constant noise while driving

There is only noise when driving, coming from the front end. the noise increases when turning left and totally disappears when steering wheel is turned right. Can be heard at any speed and only is affected by the speed of the car and not RPMs. Since noise started both front drive axles and breaks have been replaced, have also rotated tires. Wheel bearings seem to be tight and in good condition. Have also put front end on blocks and ran car to 30 miles per hour while turning left and right, with no noise. The noise almost sounds like driving on the safety edges (drunk bumps) of the highway. Do you have any advice??