... acoustic feature 声学特征；声学成分 acoustic filtering 声音过滤 acoustic manifestation 声学表现 ...
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acoustic low-pass filtering 声低通滤波特性
It introduces the method of wavelet transformation applied in the acoustic wave signal processing and how to use this method to implement the function of filtering the waves.
讨论了在声波信号处理中所使用的小波变换方法，以及用这种方法所实现的滤波功能。
Under static condition the acoustic wave detection is applied to study the filtering characteristics experimentally for two kinds of saturated rock specimens (sandstone and granite).
在静态条件下用声波探测法对两种饱水岩石标本(砂岩、花岗岩)的滤波特性进行了实验研究。
The results show that: (1) In order to improve the effect of adaptive filtering in acoustic echo canceling, the important path is to adopt new hardware and new algorithm.
回波消除中的自适应滤波研究结果表明：（1）由于受到硬件和自适应算法本身的制约，要从根本上提高回波消除中自适应滤波效果，选用新的硬件和新的算法是重要途径。
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