TI OMAP138 音频测试程序，基于片内MABSP功能模块，模块支持3.5MM标准耳机接口-TI OMAP138 audio test program, based on on-chip MABSP function modules, the module supports the standard headphone jack 3.5MM

VS1003B record demo code. Connect the VS1003B MP3 Board to the board via SPI interface, Connect the headphone to the Line out connector on the VS1003B MP3 Board.Speak to the MIC, you may hear your own voice on the headphone