diff --git a/Sounds/A320-common-sound.xml b/Sounds/A320-common-sound.xml
index 4f7f6001..08fd2ad7 100644
--- a/Sounds/A320-common-sound.xml
+++ b/Sounds/A320-common-sound.xml
@@ -1090,15 +1090,42 @@
 			<path>Aircraft/A320-family/Sounds/SASA/A320_aircond.wav</path>
 			<mode>looped</mode>
 			<name>air conditioning</name>
+			<delay-sec>2</delay-sec>
 			<condition>
-				<property>/sim/current-view/internal</property>
+				<property>/sim/sound/other/air-con</property>
 			</condition>
 			<volume>
 				<property>/sim/sound/other/air-con</property>
-				<factor>6</factor>
+				<factor>10</factor>
 			</volume>
 		</ac>
 		
+		<ac2>
+			<path>Aircraft/A320-family/Sounds/SASA/Pack-In.wav</path>
+			<mode>once</mode>
+			<name>air conditioning in</name>
+			<condition>
+				<property>/sim/sound/other/air-con</property>
+			</condition>
+			<volume>
+				<factor>17</factor>
+				<property>/sim/current-view/internal</property>
+			</volume>
+		</ac2>
+		
+		<ac2>
+			<path>Aircraft/A320-family/Sounds/SASA/Pack-Out.wav</path>
+			<mode>once</mode>
+			<name>air conditioning out</name>
+			<condition>
+				<not><property>/sim/sound/other/air-con</property></not>
+			</condition>
+			<volume>
+				<property>/sim/current-view/internal</property>
+				<factor>17</factor>
+			</volume>
+		</ac2>
+		
 		<wow>
 			<mode>once</mode>
 			<name>wow0</name>
diff --git a/Sounds/SASA/Pack-In.wav b/Sounds/SASA/Pack-In.wav
new file mode 100644
index 00000000..30261570
Binary files /dev/null and b/Sounds/SASA/Pack-In.wav differ
diff --git a/Sounds/SASA/Pack-Out.wav b/Sounds/SASA/Pack-Out.wav
new file mode 100644
index 00000000..18a4a671
Binary files /dev/null and b/Sounds/SASA/Pack-Out.wav differ
diff --git a/Systems/sound-common.xml b/Systems/sound-common.xml
index eabc0903..81475c1e 100644
--- a/Systems/sound-common.xml
+++ b/Systems/sound-common.xml
@@ -214,8 +214,8 @@
 	</filter>
 	
 	<filter>
-		<type>gain</type>
-		<gain>1</gain>
+		<type>noise-spike</type>
+		<max-rate-of-change>0.5</max-rate-of-change>
 		<input>
 			<condition>
 				<property>/sim/sound/internal-custom</property>