高精度c语音识别。使用双精度变音算法。系统环境：access2002+ vc++,vb-precision c speech recognition. Use double precision variable sound algorithm. System environment : access2002 vc, vb

一个用VB编写的双音多频识别程式，运用敷里叶变换算法。-a VB prepared by the dual tone multi-frequency identification programs, deposited using Fourier transform algorithm.