基于LPC2148和SD卡的语音信息处理技术研究

A technic research of voice information processing based on LPC2148 and SD card

分析了利用PHILIPS的LPC2148微处理器和SD卡进行语音信息处理的原理及方法,分析了SD卡中数据存储的文件格式。重点分析了SD卡语音信息的处理,包括SD卡的读写机制,及语音信息的采样和还原。最终实现了通过LPC2148对SD卡进行控制,进行语音信息的处理。

The article focused analyze the use of ARM processor and SD cards for voice information processing theory and methodology,and analyze the file format of the data storage in SD card.The article analyse the management of the SD card＇s voice message emphasisly, including the read and write mechanism of the card, and the sampling and voice message reduction.Finally realise the voice information processing,through controlling SD card by PLC2148.