With a clash of badly worn gears, the noise dwindled away toward the west.

He waited through long, tense moments; heard the creeping noises dwindle.

The screaming noise of the jet engines suddenly dwindled to a muted whine.

The noise dwindled; the air was clear and gentle with bird calls.

They walked through the doorway and movement and noise dwindled and died away.

The balconies filled up by some sort of telepathy, and the noise dwindled.

The noise dwindled behind as Tom fled through alleys and side streets.

Faint noises from outside dwindled into the peaceful black chasm of sleep.

The noise below had dwindled to an occasional half-hearted curse and a few groans.

The noise of the compressors changes and dwindles as the gas pressure falls.