这是一个完整的利用FFT对音频进行分频的工程包,是基于带ADC的51系列单片机进行的,可用KEIL51编译器进行编译.可不作任何改动就可直接烧入单片机内进行运行.-This is a complete use of FFT on the audio frequency of the engineering package, is based on the 51 Series MCU with ADC carried out, available KEIL51 compiler to compil