Local Audio on Hasbian

I am trying to use vlc for TTS on Hasbian 0.79.3h

I have the following config

      - platform: vlc
        name: speaker_1
        arguments: '--alsa-audio-device=hw:1,0'

On the command line I can play wav files and mp3 but I cannot hear any output from the media player interface on the main screen. The home-assistant.log file gives no indication that any thing was attempted.
Is there some way of debugging this, I have added

  default: warning
      homeassistant.components.mqtt: debug
      homeassistant.components.tts: debug

I think you’ll need to install the VLC addon for that.