We have designed a TTS system, which can utter any Oriya document without ambiguity. The speech synthesizer for Oriya language is designed by the character based concatenation technique. In this method the words are parsed into characters and a character is segregated into pure consonant and vowel. For example we get ‘ka’ (L) from the word ‘kaTaka’ () and further this is separated as pure consonant ‘k’ () and ‘a’ (). Likewise, all the pure consonants and vowels are stored in the ‘.wav’ format. As the vowels dominant in the utterance, they are stored for different durations as they occur in the word. 

Using the techniques of Artificial Intelligence the synthesis of sound is obtained.Further the transition between two characters is stored by taking the help of Paninian philology to give a natural shape to the output.These rules help us to slot in different levels of pitch for incorporating prosody in the output. The classification on the silence region and the unvoiced regions are also studied to place these in proper places.

Intonationmodeling is also an important aspect for the synthesis system.The  accuracy in the Oriya-Synthesis system is more than 75% as it is been tested by STQC, Banglore. We have received IPR  for this product from the Ministry of HRD, Govt. of India in the year 2002.In addition to Oriya language we are in the process of developing a TTS system for Hindi in syllable base concatenation technique. Here we apply ENSOLA algorithm for designing a robust system.