It not only degrades the speech quality and the speech intelligibility, but also makes the ear fatigue, and then the normal speech communication is affected.

• 很多语音通信场合都存在着背景噪声干扰问题，噪声不仅影响语音质量和清晰度，而且还造成人耳听觉疲劳，妨碍正常的语音通信。