这个类型的混响十分清晰，听起来十分明亮。
混响室：这种类型的房间通常很大而且是使鼓声爆发的关键。
Open-Sounding room: This type of room is usually quite large and is the key to a big exploding drum sound.
根据信号类型的定义，给出了正弦信号、线性调频信号、V型调频信号、白噪声、混响和回波信号的合成公式。
The arithmetic formulas for sine wave, linear frequency modulation signal, V-style frequency modulation signal, white noise signal, reverberation signal and echo signal are given by their definition.
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