摘要
针对音响系统在室内产生的回波干扰,采用基于频域回波抵消算法,结合DSP芯片TMS320VC5416硬件的处理方法,设计了RS232串口通讯的人机界面控制程序,从而有效地消除了干扰噪音。该方法可用于多种音频设备、会议系统,以抵消回波产生的干扰。
An echo cancelling algorithm based on frequency domain is adopted for the presence of indoor echo interference produced by an audio system. Combined with DSP chip TMS320VC5416, and the control program of human-computer interface based on RS232 serial communication is also designed to remove interfering noise. This method can be used in audio devices and conference systems to offset interference caused by echo.
出处
《物联网技术》
2012年第12期47-49,共3页
Internet of things technologies
关键词
音响系统
回波抵消
频域
干扰
audio system
echo canceller
frequency domain
interference
