2005 Pontiac Grand Am Noise in front end

I have a noise that starts when the car starts moving. It gets louder as the car increases in speed and is at it s loudest at about 70km/hr. I have recently had the front tires changed and that did not help. It is not the engine as the sound decrease and increases as the vehicle decelerates or accelerates. The vehicle performs great. there is no shimmys or pulling in the steering. THe noise however does go away when i turn to the right and returns when i am going straight or gets louder when I make a adjustment to the left.