23. The device according to claim 15 , wherein the digital processing arrangement is configured such that the logical evaluation includes deterministic rules on a storage unit that are changeable administratively or by programming.
15. A digital device for classifying at least two languages in an automatic dialogue system which processes digitized speech, comprising a digital processing arrangement including a speech recognizer and a language identification system, the digital processing arrangement being configured to recognize a language of the digitized speech input through logical evaluation of results of a speech recognition method carried out by the speech recognizer and a language identification method applied, by the language identification system, to the speech input, wherein the digital processing arrangement is configured such that, if the speech recognition method is unable to recognize the speech input, the language identification method is used to classify the speech input and, if the classification was successful, at least one of the speech recognition method and a parameter of the speech recognition method is changed so that the speech recognition is carried out with the changed speech recognition method.