有源噪声控制在自然通风窗中的实验研究

来源 :中国声学学会2010年全国会员代表大会暨学术会议 | 被引量 : 0次 | 上传用户:lizq06
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  本文对将有源噪声控制技术应用于Kang等提出的通风隔声窗上进行了实验研究。实验结果表明,当噪声源为200至600 Hz白噪声时,按照本文所给出的实验配置,可以在误差传声器处实现全频带15 dB左右的降噪。在房间内的观察点处,在大部分频带范围内,有7至8 dB的降噪量。总声压级的降噪量在10 dB左右。这表明将有源噪声控制技术应用于此型通风隔声窗中,能够在低频取得较好的降噪效果。最后,分析了降噪不均匀性的原因并探讨了房间内各处的降噪效果。
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