Support device, program and support method

A non-transitory computer readable medium storing computer readable instructions for causing a computer to execute the steps of:

• calculating a confirmed utterance rate which is an utterance rate of a confirmed part having already-confirmed text in the speech data;
• obtaining a plurality of candidate character strings which are a speech recognition result of an unconfirmed part having unconfirmed text in the speech data;
• and selecting one of the plurality of candidate character strings having the utterance time closest to the utterance time of the unconfirmed part in the speech data according to the utterance time consumed to utter the candidate character string at the confirmed utterance rate;
• wherein:
• the calculating step calculates a confirmed expression rate which is an expression rate of a confirmed part having already-confirmed text in moving image data;
• the obtaining step obtains a plurality of candidate character strings resulting from an image recognition of an unconfirmed part having unconfirmed text in the moving image data;
• and the selecting step selects, from among the plurality of candidate character strings, a candidate character string having an expression time closest to the expression time of the unconfirmed part of the moving image data, wherein the expression time is the time consumed to express the candidate character string at the confirmed expression rate.

A support method for supporting generation of text from speech data, comprising the steps of:

• calculating a confirmed utterance rate, using a processor, which is an utterance rate of a confirmed part having already-confirmed text in the speech data;
• obtaining a plurality of candidate character strings which are a speech recognition result of an unconfirmed part having unconfirmed text in the speech data;
• and selecting one of the plurality of candidate character strings having the utterance time closest to the utterance time of the unconfirmed part in the speech data according to the utterance time consumed to utter the candidate character string at the confirmed utterance rate;
• further comprising the step of:
• calculating a candidate utterance rate for each of the plurality of candidate character strings, wherein the candidate utterance rate is an utterance time consumed to utter the candidate character string at the confirmed utterance rate on the basis of the confirmed utterance rate and a number of moras or syllables in the candidate character string;
• wherein the step of calculating a confirmed utterance rate calculates, as the confirmed utterance rate, the number of moras or syllables uttered per unit time in the confirmed part having already-confirmed text in the speech data;
• and wherein the selecting step selects one of the plurality of candidate character strings having the utterance time closest to the utterance time of the unconfirmed part in the speech data according to the utterance time calculated by the candidate time calculator;
• Wherein the step of calculating a candidate utterance rate comprises the steps of:
• generating a phoneme string of the candidate character string;
• calculating a correction factor based on a phoneme string of the candidate character string;
• and calculating, as an utterance time consumed to utter the candidate character string at the confirmed utterance rate, a value obtained by a calculation where the number of moras in the candidate character string is multiplied by the correction factor and then the obtained value is divided by the confirmation utterance rate.