韦列复金在发出那声惊叫之后，紧接着又痛得他可怜地呼喊，而这一声呼喊倒要了他的命。

After the exclamation of surprise that broke from Vereshtchagin he uttered a piteous cry of pain, and that cry was his undoing.

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目前国内外声混响消减方法很多，如复倒谱法、逆滤波法、波束形成等。

So far, many kinds of dereverberation methods have been developed, such as complex cepstrum filtering, inverse filtering, beam forming and so on.

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