Add alt+d deafen keyboard shortcut.

extras/barnard-sound.sh

@@ -72,6 +72,14 @@ unmute() {
     [[ $notify ]] && notify "You unmuted yourself."
 }
 
+mutedeafen() {
+    [[ $notify ]] && notify "You muted and deafened yourself."
+}
+
+muteundeafen() {
+    [[ $notify ]] && notify "You undeafened yourself. Your microphone remains muted."
+}
+
 msg() {
     [[ $sound ]] && play -n synth .3 sin 1290:1490 sin 1494:1294 remix - norm -8
     [[ $notify ]] && notify "$1 from $2: $3"