xfce4-mixer: xfce4-mixer (Sound mixer applet for Xfce)
xfce4-mixer:
xfce4-mixer: The xfce4-mixer package contains a volume control application based 
xfce4-mixer: on GStreamer written to conceptually fit into the Xfce desktop 
xfce4-mixer: environment.  It also contains a plugin for the Xfce panel which is 
xfce4-mixer: especially designed for use with the mouse wheel.
xfce4-mixer:
xfce4-mixer:
xfce4-mixer:
xfce4-mixer:
xfce4-mixer: