1. A method for computer-supported speech recognition using feature vectors, a detection rate information being stored, said detection rate information indicating for the feature vectors as function of the information content of the feature vector components, which speech recognition rate can be respectively achieved with the feature vectors with the feature vector components which are respectively taken into account, in which the speech recognition rate which is required for a speech recognition application is determined, in which using the recognition rate information, the information content of the feature vector components which is at least necessary to ensure the specific speech recognition rate is determined, in which the number of feature vector components which are necessary in the speech recognition system for the speech recognition application in order to make available the determined information content is determined, in which the speech recognition is carried out using feature vectors with the number of feature vector components which are necessary to make available the determined information content.