This thread is for getting TTS to work for NNG (iGO/Primo/NextGen) because it's posted under iGO group. It consisted of two parts:
1. Generic installation for VocalizerEx TTS for android (not locked to any proggy)
2. The TTS voice file to use in iGO/Primo (and maybe NextGen)
If you're using Sygic, then you can do part 1 but unless Sygic can directly uses android TTS engine (there is no part 2 for Sygic), it won't work. Sygic installed it's own LoquendoTTS voice engine (it has all necessary files and library for it)