Could you please give me the code to fetch a .wav file named as Unicode and concatenate them corresponding to the given text .

I saved the wav files by giving Unicode names(for Malayalam language) . I need to fetch the corresponding sounds of the given text and concatenate them.My idea is that, When giving a text input it reads the corresponding Unicode and fetch the wav files which has the Unicode name. It compares and concatenate the wav files and gives the output. Is it possible??? Could you please give me the code for this??