1. A speech recognition apparatus comprising: a speech input unit configured to receive an input of a speech utterance; a keyword recognition unit configured to recognize at least one keyword included in the speech utterance as a recognition result; a presentation unit configured to present the recognition result; a correction input unit configured to receive a correction input for the recognition result; a correction unit configured to correct the recognition result based on the correction input to create a correction result; a dictionary generation unit configured to generate a standby-word dictionary for recognizing the speech utterance using the correction result; and a speech utterance recognition unit configured to recognize the speech utterance using the standby-word dictionary.