Muffling

The rooms in this hotel are really very bad at muffling sounds. I can hear my neighbor chewing his gum!

The storm was over, the snow had ceased falling, and under its muffling mantle, white and spent with the day's struggle, lay the great swamp of the Oro.

It was not until he had ascertained that all his mufflings were adjusted, and his coat-collar brought as near his hat as was consistent with leaving any of his face out[…]