Add alarm sound support

bin/emergency-test

@@ -12,12 +12,22 @@ pa-say "Test of emergency warning system will begin."
 sleep 1
 
 emergency-light	on
-pa-volume-loud
-pa-say "This is only a test. In the event of an emergency, this emergency warning light would be used to declare an emergency."
-pa-say "This is only a test."
+pa-alarm-start
+sleep 5
+pa-alarm-stop
 
 sleep 1
 
+#pa-volume-loud
+pa-say "This is only a test. In the event of an emergency, this emergency warning light along with the sound alarm would be used to declare an emergency."
+
+sleep 1
+
+pa-alarm-start
+sleep 4
+pa-say "This is only a test."
+sleep 4
+pa-alarm-stop
 emergency-light off
 
 pa-volume-normal

bin/pa-lib

@@ -20,14 +20,17 @@ function pa-volume() {
 }
 
 function pa-volume-normal() {
+	info "Volume set to Normal"
 	pa-volume 15
 }
 
 function pa-volume-loud() {
+	info "Volume set to HIGH!"
 	pa-volume 25
 }
 
 function pa-volume-quiet() {
+	info "Volume set to low"
 	pa-volume 8
 }
 
@@ -61,6 +64,16 @@ function pa-announcement-quickest() {
 	play $SOUNDS/announcement_4-tone_up_quickest.ogg
 }
 
+function pa-alarm-start() {
+	info "Alarm started"
+	play -loop 0 $SOUNDS/alarm_simple.ogg &
+}
+
+function pa-alarm-stop() {
+	info "Alarm stopped"
+	killall $PLAYER
+}
+
 function pa-say() {
 	info "Say: $@"
 	$SPEAK "$@"