好用的程序，相信很有用，语音芯片录放电路 ,Use the procedure, I believe that very useful, voice recording circuit chip

关于isd4xx(isd4003)系列语音录放芯片资料，中文，对该方面电路设计及编程有一定参考价值。-Series voice recorders isd4xx (isd4003) chip data, the Chinese, the circuit design and programming reference value.