Then things settled down to a quiet hum and the ship began to move forward.

The second time he said it, his voice was loud enough to quiet the hum of other voices in the now clearly seen bar.

The quiet hum of the tie receiver is the only sound in the control center.

The quiet hum of the copier could not be heard outside Room 188.

There was a quiet hum, then the light over the glass doors blinked on.

Through the quiet hum of summer noises they could hear the car approaching.

Usually you're just a quiet little hum and not emotional at all.

There was no red light, just a steady green and the machine's quiet hum.

In a moment, however, a quiet hum sounded outside the sphere.

I tried the power windows, which went up with a quiet hum.