Dla Mp3, Mp4 itp
WMPLib.WindowsMediaPlayer wplayer = new WMPLib.WindowsMediaPlayer();
wplayer.URL = "My MP3 file.mp3";
wplayer.Controls.Play();
Dla Wav
System.Media.SoundPlayer player = new System.Media.SoundPlayer();
player.SoundLocation = "Sound.wav";
player.Play();