Crowd sound effects

Dozens of voices at ordinary talking effort with no single one on top. The most useful bed on the page, because it fits any room where people are present and nothing is happening yet.

Everybody breathing in at once, then nothing. Two seconds of shared silence after a group gasp does more for a reveal than any amount of noise placed on top of it.

A few people going first and the rest catching up. That half-second of spread is what separates a real room from a canned laugh track, which arrives all at once.

Voices breaking apart with shoes hitting hard flooring underneath them. The footsteps are what turn alarm into movement, since voices alone leave everybody standing where they were.

A quiet hum of voices swelling as the group reacts to something, then dropping back. The shape is the point, because it charts a change the audience can hear happening.

The same mass with the top end taken off and a faint echo behind. The high frequencies are what carry presence, so removing them moves the group somewhere else entirely.