The signals of fetal heart beating uterine contraction and mark were processed with the DSP TMS320LF2407A . Meanwhile the volume control of the heart beat sound was realized by the DSP module .

由TMS320LF2407A构成的DSP模块完成对胎心信号、 宫缩压力信号和胎动标记请求信号的实时处理，同时实现心跳的 音量控制。