how to activate canbery

[abdelkader belahcene <abelahcene@gmail.com>]

hi,
I want to hear  the login sound when I log in debian,
it is done with ubuntu, I tried to do the same, it failed with the error


bela@belaptop:~$ canberra-gtk-play -f /usr/share/sounds/gnome/default/desktop-login.ogg
Failed to play sound: Sound disabled

the sound is enabled since i can play music !!!!,  and play the same file with kaffeine for example.

please how to enabled it
thanks