For VLC, you should install the pulseaudio output plugin. For mpg321,
edit /etc/libao.conf and set the driver to "pulse". For mpg123, there is
probably a command-line flag you can use to tell it to use pulseaudio
directly.
As for wine, its audio output problems via pulseaudio are known. However
so
Public bug reported:
Binary package hint: pulseaudio
Problem affects multiple software: at least wine, mpg123, mpg321 and
vlc. With the mpgs I get a lot of "ALSA: underrun, at least 0ms." and in
the application tab of gnome-volume-control, the application (ALSA plug-
in) rapidly flashes on and of
