该代码为C语言所编写的，开发环境为Keil uv2或Keil uv3。代码所实现的功能是：将自然界的声音转换成数字代码，然后通过ARM7将数据以*.mp3格式存入SD卡中，并可以回放。所需的硬件平台是NXP公司的ARM7（LPC2478）开发板一块，另外SD卡带有文件系统，是本人移植的。-The code is written in C language, development environment for Keil uv2 or Keil uv3. Code implemented functions are: the nature of the voice conversion into digital code, and then ARM7 data stored in*. mp3 format, SD card, and can playback. The hardware platform is required for NXP' s ARM7 (LPC2478) development board an additional SD card with the file system, is my transplant.