基于matlab的GUI界面的数字信号发生器和电子琴产生器.其中包括对所产生的的信号进行设置，显示其波形。还能产生响应的声音。数字电子琴能够演奏音乐.-Matlab GUI interface-based digital signal generator and keyboard generator set, including the generated signal to display its waveform. Is also generated in response to the sound. Digital keyboard to play music.