21.   And as background noise goes, the French language is easier to take than the cacophony of American television.

22.   And he heard background noise.

23.   And I was able to develop an acute sense of how background noise might obscure meaning.

24.   And in homes, shops and cars, the music and internal rhythms of the verses have become familiar background noise.

25.   And the players were given special high-tech earplugs, designed to filter out background noise.

26.   And that means not using the TV for baby-sitting, background noise or vegetating.

27.   Another adorable sight to most humans, another bark in the inscrutable background noise of nature.

28.   Background noise comes from the steady chatter of CNBC on one TV screen and CNN from another.

29.   Background noise at the airport can strain even the best of ears.

30.   A churning dishwasher provided the background noise.