problem in sound

Please help I have a problem when I want to open the song by movie pgayer And vlc

I got well with the knowledge ergonomics ubuntu and worked his update

More information needed

I don't understand.

What is the problem?

What does your second sentence mean?

hanks a lot first to respond

hanks a lot first to respond and attention to the problem is after Mammelt update for me .... and open a music file, but opens and disappear rapidly from the non-action has shut down