diff --git a/mopidy/audio/actor.py b/mopidy/audio/actor.py
index b88eafd8..ae6d280d 100644
--- a/mopidy/audio/actor.py
+++ b/mopidy/audio/actor.py
@@ -191,7 +191,7 @@ class Audio(pykka.ThreadingActor):
         self._connect(self._playbin, 'notify::mute', self._on_mixer_change)
 
     def _on_mixer_change(self, element, gparamspec):
-        self._mixer.trigger_events_for_any_changes()
+        self._mixer.trigger_events_for_changed_values()
 
     def _teardown_mixer(self):
         if self._config['audio']['mixer'] != 'software':
diff --git a/mopidy/mixer.py b/mopidy/mixer.py
index 7e9fc9ee..76c6e92a 100644
--- a/mopidy/mixer.py
+++ b/mopidy/mixer.py
@@ -106,29 +106,6 @@ class Mixer(object):
         logger.debug('Mixer event: mute_changed(mute=%s)', mute)
         MixerListener.send('mute_changed', mute=mute)
 
-    def trigger_events_for_any_changes(self):
-        """
-        Checks current volume and mute, compares with old values, and emits
-        events if anything has changed.
-
-        This method should be called by subclasses when they know something has
-        changed, and events needs to be sent.
-        """
-
-        if not hasattr(self, '__last_volume'):
-            self.__last_volume = None
-        if not hasattr(self, '__last_mute'):
-            self.__last_mute = None
-
-        old_volume, self.__last_volume = self.__last_volume, self.get_volume()
-        old_mute, self.__last_mute = self.__last_mute, self.get_mute()
-
-        if old_volume != self.__last_volume:
-            self.trigger_volume_changed(self.__last_volume)
-
-        if old_mute != self.__last_mute:
-            self.trigger_mute_changed(self.__last_mute)
-
 
 class MixerListener(listener.Listener):
     """
diff --git a/mopidy/softwaremixer/mixer.py b/mopidy/softwaremixer/mixer.py
index cf42fc26..abb5592c 100644
--- a/mopidy/softwaremixer/mixer.py
+++ b/mopidy/softwaremixer/mixer.py
@@ -42,3 +42,18 @@ class SoftwareMixer(pykka.ThreadingActor, mixer.Mixer):
             return False
         self.audio.set_mute(mute)
         return True
+
+    def trigger_events_for_changed_values(self):
+        if not hasattr(self, '_last_volume'):
+            self._last_volume = None
+        if not hasattr(self, '_last_mute'):
+            self._last_mute = None
+
+        old_volume, self._last_volume = self._last_volume, self.get_volume()
+        old_mute, self._last_mute = self._last_mute, self.get_mute()
+
+        if old_volume != self._last_volume:
+            self.trigger_volume_changed(self._last_volume)
+
+        if old_mute != self._last_mute:
+            self.trigger_mute_changed(self._last_mute)