We have an idea how to improve TTS pronunciation and how to deal with abbreviations. Basically we suggest to use Alt City/Street name to correctly pronounce names and/or to specify a short (abbreviated) street name.
Please support if you like the idea!
This would be a very bad idea and would defeat the true purpose of Alt Name fields (which is for search results).
However, it wouldn't be a bad idea for a new dedicated field in which a phonetic spelling of names could be entered.