There was a soft whirr and then the steel door moved open.

A few moments later the copier started with a soft whirr.

The only sound in a place once clangorous with passionate words is the soft whirr of an air-conditioner.

No more than a soft whirr and sibilance of its tires.

I heard a soft whirr by my temple.

The soft whirr of traffic came into the cathedral-like room.

With a soft electric whirr, the Land Cruisers started off.

There was hardly any sound, just a soft whirr of the vacuum pump starting up.

There was a soft whirr as the computer obeyed.

Faint and far away a soft whirr started up.