Pick up the telephone, and rather than a dial tone, the pulsing sound of a busy signal is likely to be heard.

Warmth, and a gentle pulsing sound...or is it a feeling?

They rushed on, almost at a trot, the jangle of metal against metal all but drowned in the pulsing sound.

The pulsing sound grew louder as the swarm came closer and closer.

Then there was the pulsing sound of spaceship drives.

It was, however, the source of the pulsing sound he heard.

Listen to that," he said, pausing to let her hear the pulsing musical sounds coming from the other side of the hearth.

The pulsing sound grew louder, as though the box's occupant had been aroused to danger.

There was a deep rhythmic pulsing sound coming through the hull, growing steadily louder.

"Indeterminate, but it's definitely directed at us" said the comm insect, listening to the pulsing sound.