A group of about a dozen or more objects that shifted from orb like to disc like flew in circular patterns over the 60 freeway. a news helicopter rotated around their flight pattern. objects disappeared after 15 minutes of observation. when i tried to take a video on my phone the objects would not be visible on my phone, but the helicopter was. it was very strange. there was a silence in the air even though i could hear children playing at school they sounded very distant even though i was only about a quarter block away. the helicopter was incredibly loud even though it was about less than a mile away from me in the sky. maybe these were weather balloons or drones, but they had a circular pattern and changed shape.