title: Use of Sox.exe in c# project
body: <p>I made myself a proof of concept to test this tool to manage audio files.My purpose is to change sample rate. My first example works fine!</p>
  
  <pre><code>public class Test
  {
      public void SoxMethod()
      {
          var startInfo = new ProcessStartInfo();
          startInfo.FileName = "C:\\Program Files (x86)\\sox-14-4-2\\sox.exe";
          startInfo.Arguments = "\"C:\\Program Files (x86)\\sox-14-4-2\\input.wav\" -r 16000 output.wav";
          startInfo.WindowStyle = ProcessWindowStyle.Hidden;
          startInfo.UseShellExecute = false;
          startInfo.CreateNoWindow = false;
          startInfo.WorkingDirectory= "C:\\Program Files (x86)\\sox-14-4-2";
          using (Process soxProc = Process.Start(startInfo))
          {
              soxProc.WaitForExit();
          }
      }
  }
  </code></pre>
  
  <p>But when I want to add this tool in my bin folder but I get the exception: The directory name is invalid</p>
  
  <pre><code>public void SoxMethod()
      {
          var startInfo = new ProcessStartInfo();
          startInfo.FileName = "bin/sox-14-4-2/sox.exe";
          startInfo.Arguments = "bin/sox-14-4-2/input.wav -r 16000 output.wav";
          startInfo.WindowStyle = ProcessWindowStyle.Hidden;
          startInfo.UseShellExecute = false;
          startInfo.CreateNoWindow = false;
          startInfo.WorkingDirectory= "bin/sox-14-4-2";
          using (Process soxProc = Process.Start(startInfo))
          {
              soxProc.WaitForExit();
          }
      }
  </code></pre>
  
  <p>Maybe its very obvious but I dont know what I'm doing wrong</p>