Why are we suddenly hearing so much of this music?

From the other end of the house, she suddenly heard yelling.

This was the noise that the men had suddenly heard.

Although there was another hour before the sun went down, we suddenly heard the sound of the ship's gun.

He frowned, as if suddenly hearing me for the first time.

Several hours passed, and then I suddenly heard a strange noise above my head.

And now I suddenly hear him talking like a doctoral candidate.

The five children suddenly heard footsteps coming up the path.

From behind him Sam suddenly heard the long drawn out cry.

On her walk that day, she suddenly heard a loud boom.