softwares for creating original videos with Robot voice

Can some one suggest me any software that i can make videos with text to voice that seems robotic and funny, i saw many youtube videos these days and the robotic voice isnt annoying infact its very funny to listen to please provide information as i searched for lots of info about such softwares but couldnt find any

also could some one help me find easysketchpro2.0 working edition cheers