what is the major advantages of using ANN in text-to-speech system?

TTS

[Walter Roberson]

This sounds like a homework question.

Answer 1

[Shashank Prasanna]

What is your alternative? The reason you would use one machine learning algorithm over the other can be several and based on your requirement. If it may comfort someone then I would usually point you to the Universal Approximation Theorem which states that an MLP can be a universal approximator among continuous functions:

http://en.wikipedia.org/wiki/Universal_approximation_theorem

I don't however have a specific answer in the case of TTS.