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The objective acoustical parameters and binaural room impulse response at different listening positions with different acoustical characteristics in classroom are obtained by using architectural acoustical simulation software ODEON.

应用建筑声学仿真软件ODEON仿真获取教室中具有不同声学特性的听音位置的客观声学参数和双耳房间脉冲响应。

Two structural modified design methods to raise the fundamental frequency are given with a numerical example.

通过计算，证明了本文提出的二种结构改进设计方法不同程度地提高了印制板基频。