StreetPilot C330 RGN file conversion


Greetings Fellow Members: I am trying to mod, add, convert Streetpilot C330 RGN voice file into nuvi 1490LMT version extention.Is there a software tool for its conversion.I would like to replace it with the present files for lmt1490.Some day all the marbles logged in their vocal speech will be released and pronounciation will be a dreram come true.

However, Can you post to me a best speech engine file for the nuvi lmt 1490.From jill to jack to Australia to British, all have their flaws,you would swear they all have multiple cultures.

Please help for a conversion, or a already applied file.
Thanks .