Method for operating a hearing aid system in a current acoustic environment, - wherein the hearing aid system comprises a signal processor , - wherein the signal processor generates an output signal (A) from an input signal (E) by amplifying the input signal (E) by a gain factor (V), - wherein the hearing aid system has a receiver , via which the output signal (A) is output, - wherein the gain factor (V) is set by an automatic gain control, which has a dynamic range processor that can be operated with a dynamic range scheme which defines the gain factor (V) as a function of a level of the input signal (E), - wherein the hearing aid system is operated in a program to which a dynamic range scheme is assigned, with which the dynamic range processor is operated during operation in the program, - wherein at least one situation parameter (S) is determined, which characterizes the current acoustic environment, - wherein during operation in the program, the assigned dynamic range scheme is modified depending on the situation parameter (S), so that the dynamic range processor is operated with a modified dynamic range scheme, characterized - in that the situation parameter (S) is a signal-to-noise ratio of the current acoustic environment, so that the dynamic range scheme is modified depending on the signal-to-noise ratio of the current acoustic environment, - in that the signal-to-noise ratio is a ratio of a signal which originates from a speaker and a noise which originates from one or more other sound sources, - in that the dynamic range scheme has two time constants, namely a switch-on time and a switch-off time, - in that in the case of a negative signal-to-noise ratio at least one of the time constants is reduced and conversely, in the case of a positive signal-to-noise ratio the at least one of the time constants is increased. - wherein the hearing aid system comprises a signal processor , - wherein the signal processor generates an output signal (A) from an input signal (E) by amplifying the input signal (E) by a gain factor (V), - wherein the hearing aid system has a receiver , via which the output signal (A) is output, - wherein the gain factor (V) is set by an automatic gain control, which has a dynamic range processor that can be operated with a dynamic range scheme which defines the gain factor (V) as a function of a level of the input signal (E), - wherein the hearing aid system is operated in a program to which a dynamic range scheme is assigned, with which the dynamic range processor is operated during operation in the program, - wherein at least one situation parameter (S) is determined, which characterizes the current acoustic environment, - wherein during operation in the program, the assigned dynamic range scheme is modified depending on the situation parameter (S), so that the dynamic range processor is operated with a modified dynamic range scheme, characterized - in that the situation parameter (S) is a signal-to-noise ratio of the current acoustic environment, so that the dynamic range scheme is modified depending on the signal-to-noise ratio of the current acoustic environment, - in that the signal-to-noise ratio is a ratio of a signal which originates from a speaker and a noise which originates from one or more other sound sources, - in that the dynamic range scheme has two time constants, namely a switch-on time and a switch-off time, - in that in the case of a negative signal-to-noise ratio at least one of the time constants is reduced and conversely, in the case of a positive signal-to-noise ratio the at least one of the time constants is increased. <EOS>