LOL.....I changed my brakes as well as a set of used wheels and tires at the same day. So when I heard the sound, I could have sworn it came from the brakes. The used tires were almost out and had a "V" thread pattern. So I switched it out and the noise disappeared.

I would dismantle everything and see if the pads are properly installed. U would be surprised how people at times would put the metal side onto the rotor accidentally. Also make sure your calipers are working well and clean them up with brake cleaner to get the dust off. Also check to see if the brake pads are directional...........good luck......U will find a lot of help on this forum but being a smart ass is not the way to go about