Please launch BigTalker and go to the Status page.
What does it show under “Speech Device Mode”?
For LanNouncer, it must say “speechSynthesis”. This mode is only selected during install of the app. If your app says “musicPlayer”, you can go back to the MarketPlace and install another instance of BigTalker and switch the option slider to the off position when asked for speechSynthesis or musicPlayer mode (off = speechSynthesis; on = musicPlayer). Unfortunately, this means that you will need to duplicate the events if you want LANnouncer to speak the same things as say a configured Sonos. Note voices will be different as musicPlayer’s voice is from the SmartThings text-to-speech (TTS) engine and speechSynthesis’s voice is from each independent device’s built-in TTS engine.