Final answer:
Input compression would help the hearing problem of recruitment.
Step-by-step explanation:
The hearing problem that could be helped by input compression is recruitment.
Recruitment is a condition in which a person's perception of loudness is abnormal. It occurs when the damaged hair cells in the cochlea are unable to respond properly to soft sounds, but become excessively sensitive to loud sounds. This causes a rapid increase in perceived loudness, leading to discomfort or pain.
Input compression is a technique used in hearing aids to reduce the dynamic range of sound, making the soft sounds more audible and preventing the loud sounds from becoming uncomfortably loud.