I would like to translate phonetic text (IPA) to synthesized speech. No TTS software that I have found can do this and I can't find any other software either. Any tip? Is this even doable in theory with decent quality or isn't the phonetic text (IPA in this case) good enough for this?
Loquendo's TTS has support for reading phonetic text but the result is very bad. I'm going to contact their support to get some help.
http://ssb22.user.srcf.net/gradint/lexconvert.html might be what you need; it apparently converts between various text-to-speech software encodings, including SAMPA and IPA-Unicode; with this eSpeak can be made to pronounce the encoding.
Good luck!