diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
index ecb65b2..41c7f0e 100644
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -7,12 +7,22 @@
     <inspection_tool class="ClassCanBeRecord" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
     <inspection_tool class="EmptyMethod" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="MissingJavadoc" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="INNER_CLASS_SETTINGS">
+        <Options>
+          <option name="MINIMAL_VISIBILITY" value="protected" />
+        </Options>
+      </option>
       <option name="METHOD_SETTINGS">
         <Options>
           <option name="MINIMAL_VISIBILITY" value="protected" />
           <option name="REQUIRED_TAGS" value="@return@param@throws or @exception" />
         </Options>
       </option>
+      <option name="FIELD_SETTINGS">
+        <Options>
+          <option name="MINIMAL_VISIBILITY" value="protected" />
+        </Options>
+      </option>
     </inspection_tool>
     <inspection_tool class="MissingPackageInfo" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
diff --git a/.idea/libraries/marytts_lang_en_5_2.xml b/.idea/libraries/marytts_lang_en_5_2.xml
new file mode 100644
index 0000000..3055f96
--- /dev/null
+++ b/.idea/libraries/marytts_lang_en_5_2.xml
@@ -0,0 +1,11 @@
+<component name="libraryTable">
+  <library name="marytts-lang-en-5.2">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/lib/marytts/marytts-lang-en-5.2.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/marytts/marytts-runtime-5.2-jar-with-dependencies.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/marytts/voice-cmu-slt-hsmm-5.2.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/skunkworks.iml b/.idea/skunkworks.iml
index 1a37cd7..89da5ad 100644
--- a/.idea/skunkworks.iml
+++ b/.idea/skunkworks.iml
@@ -10,5 +10,6 @@
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="lwjgl" level="project" />
     <orderEntry type="library" name="jna-5.12.1" level="project" />
+    <orderEntry type="library" name="marytts-lang-en-5.2" level="project" />
   </component>
 </module>
\ No newline at end of file