1. Method for recognizing speech, wherein for the process of recognition—in particular for a set of speech phrases (SP 1,..., SPN)—a current acoustic model (CAM) is used, wherein said current acoustic model (CAM) is adapted during the recognition process based on at least one recognition result already obtained, and wherein the process of adapting said current acoustic model (CAM) is based on an evaluation of speech phrase subunits (SPSj k ) being contained in a speech phrase (SPj) under process and/or recently recognized, characterized in that adaptation numbers (a j ) and/or occurrence numbers (o j ) are counted for each of said speech phrases (SP 1,..., SPN) as numbers of times that a particular speech phrase (SPj) is used as a basis for adapting said current acoustic model (CAM) or as numbers of times of recognized occurrences of said particular speech phrase (SPj) in the received speech flow, respectively, and in the process of adapting said current acoustic model (CAM) the strength of adaption on the basis of a particular speech phrase (SPj) is made dependent on at least its specific adaptation number (a j ) and/or occurence number (o j ), in particular so as to decrease the influence of frequent speech phrases (SPj) in the received speech flow on the adaptation process.