“四阶高通声学滤波器”(-24dB/oct,360°)
“三阶高通声学滤波器”(-12dB/oct,360°)
“二阶高通声学滤波器”(-6dB/oct,360°)
“一阶高通声学滤波器”(-3dB/oct,360°)
是这样的不?