tweaked powermenu script:

scripts/powermenu/powermenu.sh

@@ -73,7 +73,6 @@ run_cmd() {
 			systemctl reboot
 		elif [[ $1 == '--suspend' ]]; then
 			mpc -q pause
-			amixer set Master mute
 			systemctl suspend
 		elif [[ $1 == '--logout' ]]; then
 			if [[ "$DESKTOP_SESSION" == 'openbox' ]]; then