Hiss of oxygen into plastic oxygen mask or a respirator.
A teacher or student writing on a chalk board.
Three claps rhythmically by an audience of children.
Metallic snip and clunk of shears through bone with some squishing of soft tissue during an operation.
Ambiance of a room in the city with a clock ticking, distant airplane, children and a dog barking.
Dinner party ambiance of several people eating a meal together.
Post office ambiance with crowd chatter, coughs, and working sounds in the distance.
Ambiance of a small space with adults conversing in the foreground and children in the background.
Ambiance from a small busy mall featuring movement sounds and crowd chatter.
A recording of a noisy espresso machine in a busy coffee house.