Voice-Guided device control with user optimization

The invention relates to a method for preparing, operating or adjusting a voice controlled control device for operating a technical device (52), wherein an audio signal (s¶a¶) from at least one emitted by a speaker word to a first signal input (10) of an authentication device (2) is supplied. A speaker recognition takes place due to an authentication attempt (2) to establish a speaker as Individium or an objectified group of speakers to be allocated to the speaker by objectified criteria of the attributable to him audio signal and a corresponding output signal (a, a *) dispense. There is a fixed to the speaker or the objectified group corresponding profile (33) from a plurality of stored profiles (32, P¶i¶) is selected (2, 31), having regard to the output signal (a, a *) of authentication, and the selected profile (33) in a recognition area (4) integrated or loaded, in order to adapt the recognition environment to the established speaker or the objectified group out. Each of the stored profiles (P¶i¶) and the integrated or loaded profile (33) includes parameters provided for influencing at least one in the recognition area (4) word sequence recognition (42).