This paper researches on speech detection algorithm based on time domain, and describes an adaptive, both forwards and backwards search, detecting short-term pulse noise algorithm.

本文探讨了基于时域的语音切分算法，在前人研究的基础上，提出一种改进算法——自适应、前后搜索和检测短时脉冲噪音算法。

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The experiment results show that this algorithm can not only strain effectively every slow changing and pulse noise, but also sharpen well the image edge simultaneously.

实验结果表明，该算法不仅可以有效滤除各种慢变化及脉冲噪声，而且在滤噪的同时能锐化目标的边缘。

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