名词
中文翻译：回声过滤器
同义词：
['echo suppressor', 'echo gate', 'echo reject例句：1. The echo filter in the phone is very effective at reducing background noise.（手机中的回声滤波器非常有效地减少了背景噪音。）2. The echo filter was designed to improve the clarity of speech signals.（回声滤波器被设计用来提高语音信号的清晰度。）3. The echo filter is used in broadcasting systems to eliminate unwanted echoes.（在广播系统中，回声滤波器被用来消除不希望的回声。）']
例句：
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1. The echo filter in the phone is very effective at reducing background noise.
手机中的回声滤波器非常有效地减少了背景噪音。
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2. The echo filter was designed to improve the clarity of speech signals.
回声滤波器被设计用来提高语音信号的清晰度。
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3. The echo filter is used in broadcasting systems to eliminate unwanted echoes.
在广播系统中，回声滤波器被用来消除不希望的回声。