1. A speech synthesizing device, the device comprising: a text accepting unit for accepting text data; an extracting unit for extracting a special character including a pictographic character, a face mark or a symbol from text data accepted by the text accepting unit; a dictionary database in which a plurality of special characters and a plurality of phonetic expressions for each special character are registered; a selecting unit for selecting a phonetic expression of an extracted special character from the dictionary database when the extracting unit extracts the special character; a converting unit for converting the text data accepted by the accepting unit to a phonogram in accordance with a phonetic expression selected by the selecting unit in association with the extracted special character; and a speech synthesizing unit for synthesizing a voice from a phonogram obtained by the converting unit.