Spatial Unmasking Effect on Speech Reception Threshold in the Median Plane

Nathan Berwick, Hyunkook Lee

Research output: Contribution to journalArticle

Abstract

This study examined whether the spatial unmasking effect operates on speech reception thresholds (SRTs) in the median plane. SRTs were measured using an adaptive staircase procedure, with target speech sentences and speech-shaped noise maskers presented via loudspeakers at −30°, 0°, 30°, 60° and 90°. Results indicated a significant median plane spatial unmasking effect, with the largest SRT gain obtained for the −30° elevation of the masker. Head-related transfer function analysis suggests that the result is associated with the energy weighting of the ear-input signal of the masker at upper-mid frequencies relative to the maskee.
Original languageEnglish
Article number5257
Number of pages7
JournalApplied Sciences (Switzerland)
Volume10
Issue number15
Early online date30 Jul 2020
DOIs
Publication statusPublished - 1 Aug 2020

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