12. The text data processing method according to claim 7 wherein information regarding the speaker recognized by the speech recognition process is used, by the processor, for dividing.
7. A text data processing method comprising: dividing, by a processor, text obtained as a result of speech recognition process into a plurality of blocks by a unit of a topic; calculating, by the processor, a frequency of symbol insertion in a block based on an appearance frequency of a symbol included in the block and number of words or characters in the block, the block being input from a result of the division; determining, by the processor, whether symbol edit for each block is necessary or not based on the frequency of symbol insertion in each block, each block being input from a result of the dividing of the text; and calculating, by the processor, likelihood of the symbol edit based on likelihood of symbol insertion for a word and a record of symbol insertion in a block including symbol already inserted and calculating a symbol edit position in the block in accordance with the likelihood of symbol edit when determining that the symbol edit is necessary.