9. The speech recognition device according to claim 8 , further comprising: a speech continuation time measurer that when the speech section is detected by the speech section detector, measures a speech continuation time, which is a continuation time of the speech section, wherein when the speech section is detected by the speech section detector, the noise remover removes noise contained in the first speech information, and the communicator transmits the first speech information in the speech section to the server, and the determiner makes a selection as to which of the first speech recognition result, the second speech recognition result information, the third speech recognition result information, and the fourth speech recognition result information should be outputted, using at least information about a length of the speech continuation time.
10. The speech recognition device according to claim 9 , wherein when the speech continuation time is longer than a predetermined length, the determiner increases weights by which a second likelihood, indicating a likelihood of the second speech recognition result information, and a third likelihood, indicating a likelihood of the third speech recognition result information, are multiplied, compared to weights, by which a first likelihood, indicating a likelihood of the first speech recognition result information, and a fourth likelihood, indicating a likelihood of the fourth speech recognition result information, are multiplied.