Android not acknowledging TTS Engine

Question

I am developing a very simple app in here. It\'s for my Cerebral Palsy daughter. It\'s just a big YES and NO buttons, so she can press them when requested.

Well... I am

Answer 1

gingerbread allowed setting of default tts in voice input& output / default tts

gingerbread only allows 'preferred' tts in language and input / text to speech output.

so tts is preferred instead of default, which just means it is not as clear as to which gets used.

The default with application overrides where stated is a better option I think.