You should have the front end checked out for possible loose bearings ,ball joints,tierods,as well as an out of balance or bad tire. You could also rotate the tires and see if the noise moves to another corner of the vehicle ,if it does then you know that it's related to that tire.Also check the tread of the tire to see if it's wearing properly that may give you a clue as to the problem. :thumbsup:

Hope This Helps, Good Luck.

 

I recently realized far too late that my tires were wearing unevenly and causing a 'thrumming' noise. I have since had an alignment done and the noise is minimized but still present.