Most likely suspect=hub bearing(s). Jack up one side of the front of the car. Now get in and start engine,put trans. in gear and LIGHTLY accelerate to about 30 mph.Listen for noise. Do the same for the other side and compare! If either side louder than the other there's your bad hub bearing. Good idea to replace both with quality parts. There is a lot of different level's of bearings DONT SKIMP get the good stuff.