Rather a tremor on the air than an audible sound.

The little silver tube had made no audible sound, but there were already ten men in the room.

The knee began to pop as it moved, an audible sound.

The blade sliced through the air with a clearly audible sound.

Big brown bats are known also to produce audible sound during flight.

Oliver turned at some sound not audible in the screen.

This may give either a visible flame or an audible sound.

An audible sound will also be generated by the communications computer.

There was no audible sound once the aircraft had passed over.

The only audible sound was a murmured prayer for the dead.