private void PlaySilence()
 {
     if (cmbRecordingDevice.SelectedItem != null)
     {
         wavGenerator.Stop();
         wavGenerator.PlaySilenceLoop(((MMDevice)cmbRecordingDevice.SelectedItem).FriendlyName);
     }
 }
 private void PlaySilence()
 {
     if (cmbRecordingDevice.SelectedItem != null)
     {
         wavGenerator.Stop();
         var device = (MMDevice)cmbRecordingDevice.SelectedItem;
         wavGenerator.PlaySilenceLoop(device.FriendlyName, device.DeviceFormat);
     }
 }