Reset sound balance through CLI, using OSAScript

reset-sound-balance

#!/usr/bin/osascript
(* Set Volume to 100 *)
set volume 100
tell application "System Preferences"
    activate
    set current pane to pane "com.apple.preference.sound"
    reveal (first anchor of current pane whose name is "output")
end tell
tell application "System Events"
    launch
    (* Set sound balance to 0.5 (center), 0 -> left, 1 -> right *)
    tell process "System Preferences" to tell slider 1 of group 1 of tab group 1 of window 1 to set value to 0.5
end tell
quit application "System Preferences"