1. A content creation support apparatus, comprising: a processor, programmed to perform a speech synthesis on a first text including an original string to generate a synthesized speech of the first text; perform a speech recognition on the synthesized speech to obtain a second text including a recognized string resulting from the speech recognition; extract feature values by performing a morphological analysis on each of the first text and the second text, the feature values each including one of pronunciations of the original string and the recognized string; obtain a first difference string and a second difference string by extracting a difference between the first text and the second text, and to compare a first feature value that indicates one of the feature values corresponding to the first difference string and a second feature value that indicates one of the feature values corresponding to the second difference string, the first difference string that is a string in the first text including a difference from the second text, the second difference string that is a string in the second text including a difference from the first text; present one or more correction candidates according to the second feature value; and select at least one of the correction candidates in accordance with an instruction from a user.
1. A content creation support apparatus, comprising: a processor, programmed to perform a speech synthesis on a first text including an original string to generate a synthesized speech of the first text; perform a speech recognition on the synthesized speech to obtain a second text including a recognized string resulting from the speech recognition; extract feature values by performing a morphological analysis on each of the first text and the second text, the feature values each including one of pronunciations of the original string and the recognized string; obtain a first difference string and a second difference string by extracting a difference between the first text and the second text, and to compare a first feature value that indicates one of the feature values corresponding to the first difference string and a second feature value that indicates one of the feature values corresponding to the second difference string, the first difference string that is a string in the first text including a difference from the second text, the second difference string that is a string in the second text including a difference from the first text; present one or more correction candidates according to the second feature value; and select at least one of the correction candidates in accordance with an instruction from a user. 2. The apparatus according to claim 1 , wherein the extracting feature values associates a degree of importance with the second difference string, the degree of importance being calculated based on the first feature value, and wherein the presenting the correction candidates is in order of decreasing the degree of importance.