diff --git a/TTS.gd b/TTS.gd
index 5c7a4b4..cccc2c4 100644
--- a/TTS.gd
+++ b/TTS.gd
@@ -166,7 +166,7 @@ var is_rate_supported setget , _get_is_rate_supported
 
 func _get_are_utterance_callbacks_supported():
 	if Engine.has_singleton("GodotTTS"):
-		return false
+		return true
 	elif OS.has_feature('JavaScript'):
 		return false
 	elif tts != null:
diff --git a/src/main/java/games/lightsout/godot/tts/TTS.java b/src/main/java/games/lightsout/godot/tts/TTS.java
index ccfe20d..4617a4c 100644
--- a/src/main/java/games/lightsout/godot/tts/TTS.java
+++ b/src/main/java/games/lightsout/godot/tts/TTS.java
@@ -1,14 +1,18 @@
 package games.lightsout.godot.tts;
 
 import java.util.Arrays;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 import org.godotengine.godot.Godot;
 import org.godotengine.godot.plugin.GodotPlugin;
+import org.godotengine.godot.plugin.SignalInfo;
 
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.content.Context;
 import android.speech.tts.TextToSpeech;
+import android.speech.tts.UtteranceProgressListener;
 import android.view.accessibility.AccessibilityManager;
 
 public class TTS extends GodotPlugin implements TextToSpeech.OnInitListener {
@@ -18,12 +22,14 @@ public class TTS extends GodotPlugin implements TextToSpeech.OnInitListener {
 
     private Integer utteranceId = 0;
 
-    public void speak(String text, boolean interrupt) {
+    public int speak(String text, boolean interrupt) {
         int mode = TextToSpeech.QUEUE_ADD;
         if (interrupt)
             mode = TextToSpeech.QUEUE_FLUSH;
         tts.speak(text, mode, null, this.utteranceId.toString());
+        int rv = this.utteranceId.intValue();
         this.utteranceId++;
+        return rv;
     }
 
     public void stop() {
@@ -55,9 +61,27 @@ public class TTS extends GodotPlugin implements TextToSpeech.OnInitListener {
         }
     }
 
+    class Listener extends UtteranceProgressListener {
+        public void onStart(String utteranceId) {
+            Integer id = Integer.parseInt(utteranceId);
+            TTS.this.emitSignal("utterance_begin", id);
+        }
+
+        public void onDone(String utteranceId) {
+            Integer id = Integer.parseInt(utteranceId);
+            TTS.this.emitSignal("utterance_end", id);
+        }
+
+        public void onError(String utteranceId) {
+            Integer id = Integer.parseInt(utteranceId);
+            TTS.this.emitSignal("utterance_end", id);
+        }
+    }
+
     public TTS(Godot godot) {
         super(godot);
         this.tts = new TextToSpeech(this.getActivity(), this);
+        tts.setOnUtteranceProgressListener(new Listener());
     }
 
     @Override
@@ -70,6 +94,13 @@ public class TTS extends GodotPlugin implements TextToSpeech.OnInitListener {
         return Arrays.asList("speak", "stop", "get_rate", "set_rate", "has_screen_reader", "is_speaking");
     }
 
+    @Override
+    public Set<SignalInfo> getPluginSignals() {
+        SignalInfo begin = new SignalInfo("utterance_begin", Integer.class);
+        SignalInfo end = new SignalInfo("utterance_end", Integer.class);
+        return new HashSet(Arrays.asList(begin, end));
+    }
+
     public void onInit(int status) {
     }