Convert .wav to .mp3 using Lame.exe in C#.......!!!!!!!

public void mciConvertWavMP3(string fileName, bool waitFlag)
{
//maxLen is in ms (1000 = 1 second)
string outfile= "-b 32 --resample 22.05 -m m \""+pworkingDir+fileName + "\" \"" + pworkingDir+fileName.Replace(".wav",".mp3")+"\"";
System.Diagnostics.ProcessStartInfo psi=new System.Diagnostics.ProcessStartInfo();
psi.FileName="\""+pworkingDir+"lame.exe"+"\"";
psi.Arguments=outfile;
//psi.WorkingDirectory=pworkingDir;
psi.WindowStyle=System.Diagnostics.ProcessWindowStyle.Minimized;
System.Diagnostics.Process p=System.Diagnostics.Process.Start(psi);
if (waitFlag)
{
p.WaitForExit();
// wait for exit of called application
}
}

This code will help us to convert .wav file in to .mp3