This paper chooses time Voice Activity Detection algorithm(VAD), which uses short-time energy and short-time zero-pass ratio, to detect noise frame.

• 选择时域语音激活检测（简称VAD）算法作为判别噪声帧算法，选取短时能量和短时过零率两个参数作为为判别语音帧/静音帧的依据。