Google it for the machine learning technique is used. Artificial intelligence, i.e. artificial intelligence (AI) of the sea it is seen that what the pronunciation of the word kind is to be done. Google’s speech recognition tools, spoken word, analyze and experts with the accent to match it.
There is a option and will find which if any of the word in the pronunciation, you the problem is coming so that the word you type after the Speak Now option, click the You word he can speak. Your speaking of you can Google will tell that you have the correct uttered or not or you what the mistakes are and how it can be cured.
Google says that this is experimental feature which is still only the English language will be available only in. However in time to come its success on the basis of its languages scope and can be extended.