When was the last time you checked the brakes? the inner brake pads have metal tangs on them that will contact the brake rotor and produce that rotational noise when driving. the brake sensor noise usuallhy goes away when the pads shift in the calipers as they will on turns.pull the wheels off and check the inner brake pads on both sides. the calipers can be swung up to check the pads simply by removing the rear-most caliper bolt and swinging the caliper up to the front.that is the most likely cause of your noise. Its also the first place I'd look.a quick way to see if its the brake wear sensors is to lightly apply the brakes when you hear the noise. if the noise goes away its being caused by the brake wear sensors. (applying the brakes will force the pads against the rotors and dampen the noise of the wear sensors.)if you think its tyres, rotate the tires front to rear and see if the noise changes to the rear or goes away. that's the easiest way to eliminate them as a cause.by the way, i don't see very many bad hub bearings on the civics of any age. they are usually good for the life of the car.hope that helps