Parameter tuning of time-frequency masking algorithms for reverberant artifact removal within the cochlear implant stimulus.

ABSTRACT: Cochlear implant recipients struggle to understand speech in reverberant environments. To restore speech perception, artifacts due to reverberant reflections can be removed from the cochlear implant stimulus by applying a matrix of gain values, a technique referred to as time-frequency masking. In this study, two common time-frequency masking strategies are implemented within cochlear implant processing, either introducing complete retention or deletion of stimulus components using a binary mask or continuous attenuation of stimulus components using a ratio mask. Parameters of each masking strategy control the level of attenuation imposed by the gain values. In this study, we perceptually tune the parameters of the masking strategy to determine a balance between speech retention and

SUBMITTER: Shahidi LK 

PROVIDER: S-EPMC9611765 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature