He dropped, resting his ear against the floor, listening to soft vibrations.

After a while, she found the steady soft vibration of the car had become arousing.

As the soft vibration continued, Jordan discovered that the walls were slipping past his outstretched hand.

He felt a soft and subtle vibration.

There was the soft vibration of steps.

With a soft deep vibration, the little elevator was being brought down, and soon its brass door opened with the familiar dull clang.

He placed a hand on it, feeling its warmth, the soft vibration of its circulation.

But its soft nocturnal vibration filled him with a sense of peace.

Small-Sam hummed a while, regardless; she felt the soft vibration at her finger.

There was only a slight, soft vibration of leaves in the surrounding chaparral.