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语音信号端点检测是语音信号的预处理,正确的语音信号端点检测结果直接影响语音识别等后续工作的运算量和准确率。本文介绍了时域方法中基于短时能量的语音信号端点检测方法,并用三种不同的短时能量计算方式和五种短时能量阈值进行了端点检测实验。
Voice signal endpoint detection is the preprocessing of voice signals. The correct voice signal endpoint detection results directly affect the computation and accuracy of subsequent work such as voice recognition. In this paper, we present an end-point detection method of speech signal based on short-time energy in the time-domain method. Three different short-time energy calculation methods and five kinds of short-time energy thresholds are used to perform endpoint detection experiments.