Why had no one heard the crash of the table?

An hour went by, and suddenly we heard a crash from the next room.

I heard a crash behind me, but couldn't be concerned.

A moment later they heard the crash of a door hitting the floor.

She heard the crash of the front door being kicked in.

About 20 minutes later, he heard a crash on his roof.

Then she heard a loud crash from the living room.

He heard the crash of glass ahead and above him before he'd even set his foot on the steps.

Day and night, we could hear the crash of the surf.

Or when he heard the crash of footsteps up ahead.