Auditory modulation frequency selectivity allows inherent masker fluctuations to be separated from beating-induced ones.

Evidence

The modulation frequency selectivity of the auditory system shown in previous studies (e.g., Dau et al. 1997 ) indicates that the inherent modulations can be dissociated from those due to beating. The contribution of modulation cues in off-frequency masking has been demonstrated by Nitschmann and Verhey ( 2012 ) using a modulation filterbank model. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3464