volume control with shortcuts

[cedric dewulf]

hi,

i've installed xfce4 yesterday and so far i'm very pleased with it.
the only thing that makes me feel a bit nostalgic is that i haven't found a 
way
to create shortcuts to increase/decrease the sound volume.

i've read about the keythemerc file in the archive, could it be used to
increase/decrease the volume ? if so, which commands should i link to ?

thanks a lot,

a new xfce evangelist.

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