-bindsym XF86AudioRaiseVolume exec --no-startup-id sh -c "pactl set-sink-volume `pacmd list-sinks | awk -F': ' '/* index/{print $2}'` +5%" #increase sound volume
-bindsym XF86AudioLowerVolume exec --no-startup-id sh -c "pactl set-sink-volume `pacmd list-sinks | awk -F': ' '/* index/{print $2}'` -5%" #decrease sound volume
-bindsym XF86AudioMute exec --no-startup-id sh -c "pactl set-sink-mute `pacmd list-sinks | awk -F': ' '/* index/{print $2}'` toggle" # mute sound
-bindsym XF86AudioMicMute exec --no-startup-id sh -c "pactl set-source-mute `pacmd list-sources | awk -F': ' '/* index/{print $2}'` toggle" # mute mic
-bindsym XF86AudioNext exec --no-startup-id mpc next
-bindsym XF86AudioPrev exec --no-startup-id mpc prev
-bindsym XF86AudioPlay exec --no-startup-id mpc toggle
-bindsym XF86AudioStop exec --no-startup-id mpc stop
-bindsym XF86AudioPause exec --no-startup-id mpc pause
-bindsym XF86AudioRewind exec --no-startup-id mpc seek -00:01:00
-
+# increase sound volume
+bindsym XF86AudioRaiseVolume exec --no-startup-id "pactl set-sink-volume `pactl info | awk -F': ' '/Default Sink/{print $2}'` +5%"
+#decrease sound volume
+bindsym XF86AudioLowerVolume exec --no-startup-id "pactl set-sink-volume `pactl info | awk -F': ' '/Default Sink/{print $2}'` -5%"
+# mute sound
+bindsym XF86AudioMute exec --no-startup-id "pactl set-sink-mute `pactl info | awk -F': ' '/Default Sink/{print $2}'` toggle"
+# mute mic
+bindsym XF86AudioMicMute exec --no-startup-id "pactl set-source-mute `pactl info | awk -F': ' '/Default Source/{print $2}'` toggle"
+bindsym XF86AudioNext exec --no-startup-id "sh -c '(mpc next 2>&1 >/dev/null & )'"
+bindsym XF86AudioPrev exec --no-startup-id "sh -c '(mpc prev 2>&1 >/dev/null & )'"
+bindsym XF86AudioPlay exec --no-startup-id "sh -c '(mpc toggle 2>&1 >/dev/null & )'"
+bindsym XF86AudioStop exec --no-startup-id "sh -c '(mpc stop 2>&1 >/dev/null & )'"
+bindsym XF86AudioPause exec --no-startup-id "sh -c '(mpc pause 2>&1 >/dev/null & )'"
+bindsym XF86AudioRewind exec --no-startup-id "sh -c '(mpc seek -00:01:00 2>&1 >/dev/null & )'"