The sound of a "push bar to open" fire door being opened. It could also be used as the sound of a car door closing. Recorded on a zoom iq7, then mixed to mono.
The sound features a glass front door of a suburban home is opening and closing. The opening of the door needed more gain which was added in pro tools.
Quad (l,rlsrs) of a mechanical garage door opener opening the door. Very squeaky while opening. Recorded at a near perspective. Recorded with a zoom h2n in surround mode.