Sound error

[pythoncoder25]

my sound doesn't work. Every time I start up the game and log into a server it gives me an error message like: "Error 2 when playing 'audio/hal4.ogg' Disabling music" and then when I try and turn on music and sound again it does the same thing. Anyone know how I can fix this?

[UnknownShadow200]

What operating system are you using? 

Are you able to play audio in other applications without any issues?