private void btnVox2Mp3_Click(object sender, EventArgs e)
{
string voxFile = tbVox.Text;
if (voxFile == string.Empty)
{
MessageBox.Show("Please, select file for converting");
return;
}
string mp3File = Path.ChangeExtension(voxFile, ".mp3");
Vox.Vox2Mp3(voxFile, mp3File, (int)cbSamplesPerSec.SelectedValue);
MessageBox.Show(string.Format("The result is stored in the file '{0}'. Choose next file for the converting.", mp3File), "The conversion was executed successfully");
OpenContainingFolder(mp3File);
}