void nist2nist(string src_file, string dst_file)
{
nist obj = new nist();
obj.LoadData(src_file);
obj.SaveData(dst_file);
}
void pcm2nist(string pcm_file, string nist_file)
{
pcm obj = new pcm();
obj.LoadData(pcm_file);
nist obj_nist = obj.GetNist();
obj_nist.SaveData(nist_file);
}
void wav2nist(string wav_file, string nist_file)
{
wav obj = new wav();
obj.LoadData(wav_file);
nist obj_nist = obj.GetNist();
obj_nist.SaveData(nist_file);
}