A hearing device wearer is to have improved possibilities of being able to perform a fine adjustment of his/her hearing device according to a basic setting. To this end, each processing value of a multi-channel processing system is standardized, in particular a filter bank, to a respectively associated basic setting value. A fine adjustment of the processing values to the hearing device wearer can now be carried out in relation to the standardized processing values starting from a standardized base line. It is thus possible for the hearing device wearer to implement a standardization of the setting values at any point in time and based hereupon to intuitively perform his/her setting requests.