1.   It began with muffled voices that meant nothing.

2.   Muffled voices were coming from downstairs.

3.   I could hear muffled voices in the next room.

4.   I could hear their muffled voices from the next room.

5.   Sometimes through the wall I hear phones ringing and muffled voices answering them.

6.   At last, a muffled voice answered.

7.   The muffled voice behind the door sank at last into hopeless silence.

8.   Afterward, as worshipers gathered in tight groups before heading into the Tehran night, the same anxiety found a dozen muffled voices.

9.   Elkins asked, his muffled voice absorbed by the goose down world around him.