Improve stall alert sound (voice, then constant cricket). The stall warning should only occur in alternate or direct law.

Sounds/A320-common-sound.xml

@@ -1952,6 +1952,7 @@
 			<path>Aircraft/A320-family/Sounds/Cockpit/cricket.wav</path>
 			<mode>looped</mode>
 			<type>avionics</type>
+			<delay-sec>1.5</delay-sec>
 			<condition>
 				<property>/sim/sound/warnings/cricket</property>
 			</condition>
@@ -1981,7 +1982,7 @@
 		
 		<stall-voice>
 			<name>stall-voice</name>
-			<mode>looped</mode>
+			<mode>once</mode>
 			<path>Aircraft/A320-family/Sounds/Cockpit/stall_voice.wav</path>
 			<type>avionics</type>
 			<condition>

Systems/a320-fwc.xml

@@ -1709,7 +1709,7 @@
 			<test logic="AND" value="1">
 				/instrumentation/radar-altimeter[0]/radar-altitude-ft lt 1500
 				/instrumentation/radar-altimeter[1]/radar-altitude-ft lt 1500
-				<!-- /it-fbw/law ne 0 confirm -->
+				/it-fbw/law ne 0
 				/ECAM/warnings/logic/stall/phase-flipflop eq 1
 			</test>
 		</switch>
@@ -1735,7 +1735,7 @@
 						</test>
 					</test>
 				</test>
-				<!-- /it-fbw/law ne 0 confirm... -->
+				/it-fbw/law ne 0
 				<test logic="OR">
 					/systems/navigation/adr/operating-1 eq 1
 					/systems/navigation/adr/operating-2 eq 1