Also resume talking if config dialog is canceled

src/calibre/gui2/viewer/tts.py

@@ -129,3 +129,5 @@ class TTS(QObject):
         if d.exec_() == QDialog.DialogCode.Accepted:
             self.backend_settings = d.backend_settings
             self.settings_changed.emit(d.ui_settings)
+        else:
+            self.settings_changed.emit(None)

src/pyj/read_book/read_aloud.pyj

@@ -205,6 +205,8 @@ class ReadAloud:
             if self.waiting_for_configure:
                 self.waiting_for_configure = False
                 self.play()
+            if data is not None:
+                pass
 
     def send_message(self, type, **kw):
         self.view.iframe_wrapper.send_message('tts', type=type, **kw)