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. 2021 Jan;1(1):014401.
doi: 10.1121/10.0003049.

Bilateral and bimodal cochlear implant listeners can segregate competing speech using talker sex cues, but not spatial cues

Shelby Willis  1 , Kevin Xu  1 , Mathew Thomas  1 , Quinton Gopen  1 , Akira Ishiyama  1 , John J Galvin 3rd  2 , Qian-Jie Fu  1
Affiliations

Bilateral and bimodal cochlear implant listeners can segregate competing speech using talker sex cues, but not spatial cues

Shelby Willis et al. JASA Express Lett. 2021 Jan.

Abstract

Cochlear implant (CI) users have greater difficulty perceiving talker sex and spatial cues than do normal-hearing (NH) listeners. The present study measured recognition of target sentences in the presence of two co-located or spatially separated speech maskers in NH, bilateral CI, and bimodal CI listeners; masker sex was the same as or different than the target. NH listeners demonstrated a large masking release with masker sex and/or spatial cues. For CI listeners, significant masking release was observed with masker sex cues, but not with spatial cues, at least for the spatially symmetrically placed maskers and listening task used in this study.

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Figures

Fig. 1.
Fig. 1.
Left panel: Boxplots of SRTs for the segregation cue conditions for CI and NH listeners. Right panel: Boxplots of MR for the masker sex, spatial, and masker sex + spatial cue conditions, relative to the no masker sex/no spatial cue condition (white boxes in the left panel) for CI and NH listeners. In both panels, the horizontal solid line shows the median, the error bars show the 10th and 90th percentiles, the filled circles show outliers (>90th percentile, <10th percentile), and the open symbols show data for older NH listeners. Note that SRTs and MR are expressed in terms of TMR.
See this image and copyright information in PMC

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