diff --git a/libs/ardour/test/data/automation_list_property_test1.ref b/libs/ardour/test/data/automation_list_property_test1.ref
index d15e7e2947..16f27298b3 100644
--- a/libs/ardour/test/data/automation_list_property_test1.ref
+++ b/libs/ardour/test/data/automation_list_property_test1.ref
@@ -2,12 +2,12 @@
 <test>
   <FadeIn>
     <from>
-      <AutomationList automation-id="fadein" id="164" interpolation-style="Linear" state="Off"/>
+      <AutomationList automation-id="fadein" id="164" interpolation-style="Linear" time-domain="AudioTime" state="Off"/>
     </from>
     <to>
-      <AutomationList automation-id="fadein" id="163" interpolation-style="Linear" state="Off">
-        <events>1 0.5
-3 2
+      <AutomationList automation-id="fadein" id="163" interpolation-style="Linear" time-domain="AudioTime" state="Off">
+        <events>a1176 0.5
+a3528 2
 </events>
       </AutomationList>
     </to>
diff --git a/libs/ardour/test/data/automation_list_property_test2.ref b/libs/ardour/test/data/automation_list_property_test2.ref
index 89549f7428..32aeb0cc34 100644
--- a/libs/ardour/test/data/automation_list_property_test2.ref
+++ b/libs/ardour/test/data/automation_list_property_test2.ref
@@ -2,18 +2,18 @@
 <test>
   <FadeIn>
     <from>
-      <AutomationList automation-id="fadein" id="165" interpolation-style="Linear" state="Off">
-        <events>1 0.5
-3 2
+      <AutomationList automation-id="fadein" id="165" interpolation-style="Linear" time-domain="AudioTime" state="Off">
+        <events>a1176 0.5
+a3528 2
 </events>
       </AutomationList>
     </from>
     <to>
-      <AutomationList automation-id="fadein" id="163" interpolation-style="Linear" state="Off">
-        <events>1 0.5
-3 2
-5 1.5
-7 1
+      <AutomationList automation-id="fadein" id="163" interpolation-style="Linear" time-domain="AudioTime" state="Off">
+        <events>a1176 0.5
+a3528 2
+a5880 1.5
+a8232 1
 </events>
       </AutomationList>
     </to>
diff --git a/libs/ardour/test/data/automation_list_property_test3.ref b/libs/ardour/test/data/automation_list_property_test3.ref
index b39c592f42..ccbfc5076d 100644
--- a/libs/ardour/test/data/automation_list_property_test3.ref
+++ b/libs/ardour/test/data/automation_list_property_test3.ref
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <State>
   <FadeIn>
-    <AutomationList automation-id="fadein" id="167" interpolation-style="Linear" state="Off">
-      <events>0 1
-1 2
+    <AutomationList automation-id="fadein" id="167" interpolation-style="Linear" time-domain="AudioTime" state="Off">
+      <events>a0 1
+a1176 2
 </events>
     </AutomationList>
   </FadeIn>
diff --git a/libs/ardour/test/data/automation_list_property_test4.ref b/libs/ardour/test/data/automation_list_property_test4.ref
index 59ec993c08..4c625e8cae 100644
--- a/libs/ardour/test/data/automation_list_property_test4.ref
+++ b/libs/ardour/test/data/automation_list_property_test4.ref
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <State>
   <FadeIn>
-    <AutomationList automation-id="fadein" id="167" interpolation-style="Linear" state="Off">
-      <events>0 1
-1 2
-2 1
-3 0
+    <AutomationList automation-id="fadein" id="167" interpolation-style="Linear" time-domain="AudioTime" state="Off">
+      <events>a0 1
+a1176 2
+a2352 1
+a3528 0
 </events>
     </AutomationList>
   </FadeIn>