Text to sound effects

Hi this might be a weird one but here goes. My brother for his Computer coarsework wants a program which is kinda like Text to Speech but can convert text to different sound effects like different accents, metallic sounds, happy - sad voices etc.. anybody know of a program like this cus i've done a quick google search but no results. cheers.

 

Which google did you use, I got 8,900,000 results here

 

Not text to speech. all ready got that. need one which can make effects. would i need to combine using text to speech and a audio mixer? or is there 1 program which can do this?

 

Well text to speech would be the engine you would use in order to produce sound as you typed text. Most people want that sound to be speech, but I am sure you can find something to replace human speech with sound effects.