Hi
Progress is being made.
I followed the instructions in another thread and downloaded vocalised voice along with the app on the device and selected one of the voices.

I added the English-uk_universal_unisex_andTTS-Boki_srb_v.1 to the voice folder in the igo pongo folders and set the tts voice in igo and I now have working tts voices.

I still have an issue with the tts in that it also reads all the special characters out, ie. &!$ etc and says phoneme before ot reads the street names so I need to work out how to stop this.

Thanks