instantaneous energy meaning in English

瞬时能量

The initial vsd process uses two main characters , the average instantaneous energy and the average instantaneous zero crossing rate ( zcr ) . to make the first recognition for the start and the end , the emphasis of which is to select the appropriate value of the threshold and the length of frame . in the final vsd process , the author compares several characters and confirms the new recognition character
初步分段过程使用了能量和过零率这两个主要特征进行端点检测，重点是合理选择两个重要参数? ?门限和统计帧长度的取值；在最终分段过程中，笔者首先通过比较几种特征的识别效果，选择卡尔曼滤波参数作为再次分段的识别特征，还提出了一种新的识别特征? ?周期性缓变特征，使用这两个特征分别在子语音段内进行端点检测。