What adjustment can address a patient’s complaint about "paper rustling" sounds?

The correct adjustment to address a patient's complaint about "paper rustling" sounds is to reduce high frequency gain. Many everyday sounds, such as the specific noise of paper rustling, tend to fall within the higher frequency range. If a hearing aid amplifies these high frequencies too much, it can lead to discomfort or an overwhelming perception of these sounds. By reducing the gain in the high frequency range, the device helps to soften these sounds, making it more comfortable for the patient.

In contrast, increasing the slope, decreasing mid frequency gain, or activating low frequency potential either do not directly address the issues associated with high frequency sounds or may inadvertently enhance other unwanted sound perceptions. Adjustments to mid frequencies might impact clarity of speech, and changes to low frequencies wouldn't typically affect high frequency noise complaints like rustling paper.