How do you generate voice from virtual Matlab Keyboard ?

When we want to run the Matlab virtual keyboard, we would like to save the string in order for Matlab to generate a voice file that reads what we typed out. How would we go about this ?

[Alamanda Ponappa Poovaya]

Could you clarify about what you want to do exactly? Are you trying to read out each character as it's typed? Or are you trying to read it all out at once? Also, regarding saving a string, do you need to save it to pass it to text to speech function seperately?