If the noise gets louder with speed, it is possible that the bearing in one or more of your wheel hub assemblies have failed. The noise will also become more pronounced during steady state corning.
Bad wheel bearing
There can be a slight humming noise while driving a neon. This sound could come purely from the engine to indicate that it is running.
Could be a bearing going bad.
bad wheel bearings will do that, usually in the front.
No. The loud humming noise could be a wheel bearing going bad and it could damage the ABS sensor if allowed to continue.
The kids in the back.
Check your power steering pump A: check the front Left wheel bearing
it does that because it has a generator which makes the engine makes these sounds
Possibly the wheel bearing.
Brakes
I have heard that if you have papers or napkins in the glove compartment box they can get sucked into the air vent which then makes a humming noise that you can hear while driving and as you increase the speed the pitch of the noise gets louder.
Answer Humming noise from front endI just got my car fixed with the same problem and it was the wheel bearing and it is gone. Was it a fwd car?