Children experiencing an auditory function deficit can often find speech and communication very difficult to isolate and process when set against high levels of background noise.

在面对高强度的背景噪音时，患有听觉功能损伤的儿童往往很难把语言分离出来进行处理，也很难进行沟通。

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Mr Howard's speech came against a background of feverish debate about the performances of the various the leadership contenders.

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But at least, after this speech, he would be entitled to take this man's background into account.

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The model also included a microphone which can monitor background noise and determine whether to amplify certain sounds - such as speech - to improve the listening experience.

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