1.   All of the background noise made it difficult to have a phone conversation.

2.   Background noise Background noise preventing speech reception is a frequent complaint among people whose use a hearing-aid.

3.   Background noises can be added for maximum realism.

4.   For speech recognition the principal operational difficulty to be faced is the interference to the acoustic signal from background noise.

5.   If under-modulated, there will be a lot of background noise and weak results.

6.   It set up a moaning background noise that would occasionally gust into prominence, then lapse again to mere accompaniment.

7.   It sounded like Klaus Richter, although there was a lot of background noise.

8.   Obviously remove or reduce the background noise wherever possible.

9.   Repetitive stimuli are relegated to background noise and, like the ticking of that clock, are not heard until they stop.

10.   The background noise made it hard to hear what he was saying.