使用GPTC6604做的一个录放音DEMO，数据存储在外部SPI FLASH

ISD4004录放音演示程序，此程序已经通过精心修改，调试，并且能够正确运行。而且可以防止不同的红外遥控干扰-ISD4004 sound recording demo program, this program has been through careful corrections, adjustments, and the ability to run correctly. But also to prevent interference with different infrared re