Hearing-impaired listeners in these tests had moderate symmetric sloping losses
Evidence
The data is compiled from different studies but each group contained at least 12 NH (mean age 28.8β33.6 years) and 16 older HI (mean age 68.8β73.1 years). The HI listeners had a moderate, bilaterally symmetric, sloping sensorineural hearing loss with a 4FAHL of 48 Β±5dB. β Dijk, Pim van, Physiology, Psychoacoustics andβ¦, 1744