| 1. | For speech communication , noise and interference will make listener fatigued and affect intelligibility and articulation of speech . as a result , it is necessary to design corresponding device to reduce noise in wireless speech communication . this thesis focus on the basic theory of speech processing , the key technologies to reduce noise in speech and the design and implementation of corresponding noise reduce devices 由于无线语音在传输过程中不可避免地会受到风、雨、雷、电的干扰;还有来自周围环境的干扰及通信设备内部电噪声等的干扰,使得原始的纯净语音成为被噪声污染的带噪语音,从而对无线语音通信的质量产生严重影响。 |