1. A method for classification of at least two languages in an automatic computer based dialogue system comprising: applying a speech recognition method and a language identification method to digitized speech input using a processing unit; and identifying a language of the speech input using logical evaluation of results of the speech recognition method and the language identification method, wherein if the speech recognition method is unable to recognize the speech input then 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 speech recognition is carried out with the changed speech recognition method.