The aircraft seemed to be in trouble because the noise from the engines was changing significantly.

The noise of the Russian advance changed in quality and intensity, but never stopped.

The noises of the festival down by the lake had changed.

But the noise coming down from the steep stands had changed.

The noises of the village changed too, as I left the business hub.

They say noise from it has dramatically changed their lives.

The noise in the cabin changed tone; part of it dropped away.

Behind him the noise was changing, rising, as the fight wound up to pressure.

The noises from outside changed as they left the door open behind them.

Suddenly, the noise changed its direction and came toward them.