1. A system for correcting text, comprising: a target text unit determining section configured to determine a target text unit to be corrected in the text; a reference voice segment receiving section configured to receive a reference voice segment input by a user for the target text unit; a reference text unit determining section configured to determine a reference text unit whose pronunciation is similar to a word in the target text unit based on the reference voice segment; and a target text unit correcting section configured to correct the word in the target text unit in the text by the reference text unit.