why do I hear a chirp or sweek when I depress the brake peddle

just hearing it in the front and it is actually when I release the brake peddle....think I need front brakes!

I hear a chirp when I press the brake peddle and my brakes pads are fine. I think it is something in the deployment of the brake that is making a noice, but I haven't asked anyone to look further.

Exactly the same thing I am experiencing...wierd...cause my pads are fine also..