Her voice softened as she looked back into the past.

His voice softened and he paused as the other person talked.

Any man whose voice softened at the mention of his mother couldn't be all bad.

His voice had softened somewhat, and she looked up at him with surprise.

When she said the last few words, her voice softened and took on a pleading note.

His voice had softened, and he smiled again, this time in memory.

At last she took his hand, and her voice softened.

His voice softened, with just a note of triumph in it.

He put a hand on her shoulder then, and his voice softened.

Her voice softened, and she reached once more for his hands.