def get_phonetic_info(self, lang):
        """For a specified language (lang), it returns the matrix and the vecto
         containing specifications of the characters.
         """
        phonetic_data = self.all_phonetic_data if lang != LC_TA else self.tamil_phonetic_data
        phonetic_vectors = self.all_phonetic_vectors if lang != LC_TA else self.tamil_phonetic_vectors

        return phonetic_data, phonetic_vectors
For a specified language (lang), it returns the matrix and the vecto
         containing specifications of the characters.