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有源消声技术对于管道中低频噪声的控制非常有效。本文描述的自适应管道有源消声系统,性能稳定,对单频的消声量可达30dB,对宽带随机噪声的消声量不低于14dB。
Active noise reduction technology for the control of low-frequency noise in the pipeline is very effective. The adaptive pipeline active muffling system described in this paper has stable performance and achieves a 30dB muffler attenuation for single frequency and a muffling volume of no less than 14dB for wideband random noise.