Spatial release from masking was tested using same-talker distractors with HRTF spatialization

Evidence

Subjects were assessed with a Matlab version of the LiSN-S test (Glyde et al. 2013 ), in which short, meaningful sentences (e.g., “The brother carried her bag”) were presented in an ongoing two-talker background. Target and distractors were spoken by the same female talker and target sentences were preceded by a brief tone burst. Using HRTFs, target sentences were presented from 0° azimuth and the distractors from either 0° azimuth (colocated condition) or ±90° azimuth (spatially separated condition). The combined distractor level was fixed at 55 dB SPL and the target level was adapted to determine the TMR at which 50 % of the target words were correctly understood. Subjects were seated in an audiometric booth and repeated the target sentences to a conductor. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1745