1.   He lowered his voice to a whisper.

2.   He motioned for me to lower my voice.

3.   Helen lowered her voice as they approached.

4.   Kath lowered her voice as she spoke.

5.   No one else had come in, yet she automatically lowered her voice.

6.   She lowered her voice, leaning closer.

7.   The man moved closer, lowering his voice.

8.   For some reason he felt constrained to lower his voice.

9.   As I lowered my voice further and spoke close to his ear, the blind man leaned his head eagerly toward me.

10.   The crowd, too, had lowered their voices, but this had the effect of making the exchanges even more momentous.