STM32制作的MP3的全部资料，包含优化类的几个简单示例程序，分析了该信号的时域、频域、倒谱，循环谱等。- STM32 all the information produced by the MP3, Optimization class contains several simple sample programs, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc.

包含优化类的几个简单示例程序，STM32制作的MP3的全部资料，有详细的注释。- Optimization class contains several simple sample programs, STM32 all the information produced by the MP3, There are detailed notes.