声音信号处理，采集和分析语言信号的频谱并且用低通滤波器处理该信号。播放最后处理信号。-treat the signal of son, detect the signal of son and analyse the frequental spectre of signal and treat it with filtre passe-bas. Play the wav treated.

利用matlab读入wav音频,进行音频均衡后,播放音频效果,不错的-Using matlab into wav audio, audio is balanced, play audio effect, good