diff --git a/libs/ardour/ardour/plugin_insert.h b/libs/ardour/ardour/plugin_insert.h
index 7f5583b1d4..f3ebf5bde0 100644
--- a/libs/ardour/ardour/plugin_insert.h
+++ b/libs/ardour/ardour/plugin_insert.h
@@ -59,7 +59,7 @@ class Plugin;
 class LIBARDOUR_API PluginInsert : public Processor
 {
 public:
-	PluginInsert (Session&, boost::shared_ptr<Plugin> = boost::shared_ptr<Plugin>());
+	PluginInsert (Session&, Temporal::TimeDomain td, boost::shared_ptr<Plugin> = boost::shared_ptr<Plugin>());
 	~PluginInsert ();
 
 	void drop_references ();
diff --git a/libs/ardour/auditioner.cc b/libs/ardour/auditioner.cc
index ad6ba96a6e..5e5c4e5b97 100644
--- a/libs/ardour/auditioner.cc
+++ b/libs/ardour/auditioner.cc
@@ -78,7 +78,7 @@ Auditioner::init ()
 
 	if (!audition_synth_info) {
 		lookup_fallback_synth ();
-	} 
+	}
 
 	_output->changed.connect_same_thread (*this, boost::bind (&Auditioner::output_changed, this, _1, _2));
 
@@ -107,7 +107,7 @@ Auditioner::lookup_fallback_synth_plugin_info (std::string const& uri) const
 void
 Auditioner::lookup_fallback_synth ()
 {
-	
+
 	PluginInfoPtr nfo = lookup_fallback_synth_plugin_info ("http://gareus.org/oss/lv2/gmsynth");
 
 	//GMsynth not found: fallback to Reasonable Synth
@@ -138,10 +138,10 @@ Auditioner::load_synth (bool need_lock)
 	if (!audition_synth_info) {
 		return;
 	}
-	
+
 	boost::shared_ptr<Plugin> p = audition_synth_info->load (_session);
 	if (p) {
-		asynth = boost::shared_ptr<Processor> (new PluginInsert (_session, p));
+		asynth = boost::shared_ptr<Processor> (new PluginInsert (_session, time_domain(), p));
 	}
 }
 
@@ -608,4 +608,3 @@ Auditioner::monitoring_state () const
 {
 	return MonitoringDisk;
 }
-
diff --git a/libs/ardour/lua_api.cc b/libs/ardour/lua_api.cc
index 4b0fb8697c..2eaed393dd 100644
--- a/libs/ardour/lua_api.cc
+++ b/libs/ardour/lua_api.cc
@@ -108,7 +108,8 @@ ARDOUR::LuaAPI::new_luaproc (Session *s, const string& name)
 		return boost::shared_ptr<Processor> ();
 	}
 
-	return boost::shared_ptr<Processor> (new PluginInsert (*s, p));
+#warning NUTEMPO caller should be able to control time domain
+	return boost::shared_ptr<Processor> (new PluginInsert (*s, Config->get_default_automation_time_domain(), p));
 }
 
 boost::shared_ptr<Processor>
@@ -231,7 +232,8 @@ ARDOUR::LuaAPI::new_plugin (Session *s, const string& name, ARDOUR::PluginType t
 		}
 	}
 
-	return boost::shared_ptr<Processor> (new PluginInsert (*s, p));
+#warning NUTEMPO caller should be able to control time domain
+	return boost::shared_ptr<Processor> (new PluginInsert (*s, Config->get_default_automation_time_domain(), p));
 }
 
 bool
diff --git a/libs/ardour/plugin_insert.cc b/libs/ardour/plugin_insert.cc
index f8095fc81e..11738c9c90 100644
--- a/libs/ardour/plugin_insert.cc
+++ b/libs/ardour/plugin_insert.cc
@@ -75,9 +75,8 @@ using namespace PBD;
 
 const string PluginInsert::port_automation_node_name = "PortAutomation";
 
-PluginInsert::PluginInsert (Session& s, boost::shared_ptr<Plugin> plug)
-#warning NUTEMPO why audio time when this processor can handle MIDI also
-	: Processor (s, (plug ? plug->name() : string ("toBeRenamed")), Temporal::AudioTime)
+PluginInsert::PluginInsert (Session& s, Temporal::TimeDomain td, boost::shared_ptr<Plugin> plug)
+	: Processor (s, (plug ? plug->name() : string ("toBeRenamed")), td)
 	, _sc_playback_latency (0)
 	, _sc_capture_latency (0)
 	, _plugin_signal_latency (0)
diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index da23eb1dcb..04cd5ced39 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -945,7 +945,7 @@ Route::add_processor_from_xml_2X (const XMLNode& node, int version)
 					if (_session.get_disable_all_loaded_plugins ()) {
 						processor.reset (new UnknownProcessor (_session, node));
 					} else {
-						processor.reset (new PluginInsert (_session));
+						processor.reset (new PluginInsert (_session, time_domain()));
 						processor->set_owner (this);
 					}
 
@@ -3215,7 +3215,7 @@ Route::set_processor_state (XMLNode const& node, int version, XMLProperty const*
 			if (_session.get_disable_all_loaded_plugins ()) {
 				processor.reset (new UnknownProcessor (_session, node));
 			} else {
-				processor.reset (new PluginInsert (_session));
+				processor.reset (new PluginInsert (_session, time_domain()));
 				processor->set_owner (this);
 			}
 		} else if (prop->value() == "port") {
diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index 386cf93b51..8cafa213dc 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -3432,7 +3432,7 @@ Session::load_and_connect_instruments (RouteList& new_routes, bool strict_io, bo
 			if (pset) {
 				plugin->load_preset (*pset);
 			}
-			boost::shared_ptr<PluginInsert> pi (new PluginInsert (*this, plugin));
+			boost::shared_ptr<PluginInsert> pi (new PluginInsert (*this, (*r)->time_domain(), plugin));
 			if (strict_io) {
 				pi->set_strict_io (true);
 			}
diff --git a/libs/ardour/test/lua_script_test.cc b/libs/ardour/test/lua_script_test.cc
index 9f715aa5e3..ec29415517 100644
--- a/libs/ardour/test/lua_script_test.cc
+++ b/libs/ardour/test/lua_script_test.cc
@@ -91,7 +91,7 @@ LuaScriptTest::dsp_script_test ()
 		PluginPtr p = (*i)->load (*_session);
 		CPPUNIT_ASSERT_MESSAGE ((*i)->name, p);
 
-		boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
+		boost::shared_ptr<Processor> processor (new PluginInsert (*_session, r->time_domain(), p));
 		processor->enable (true);
 
 		int rv = r->add_processor (processor, boost::shared_ptr<Processor>(), 0);