 Varying the intensity of the input noise varies the mean of the output noise after the passage through the filter, which causes a change of stability properties of the system.
<clarity>  Varying the intensity of the input noise varies the mean of the output noise after the passage through the filter, which causes a change of stability properties of the system.
 Varying the intensity of the input noise varies the mean of the noise after the passage through the filter, which causes a change of stability properties of the system.