Как получить скорость потока (kbps/s) wav файла - C#

public Form1()
{
InitializeComponent();
 
    axWindowsMediaPlayer1.PlayStateChange += new AxWMPLib._WMPOCXEvents_PlayStateChangeEventHandler(player_PlayStateChange);
    axWindowsMediaPlayer1.URL = "Johnny B. Goode.wav";
}
 
private void player_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e)
{
    label1.Text = "Current Bit Rate: " + axWindowsMediaPlayer1.network.bitRate / 1000 + " Kbits/s";
}