Effects of Removing Low-Frequency Electric Information on Speech Perception With Bimodal Hearing.

ABSTRACT:

Purpose

The objective was to determine whether speech perception could be improved for bimodal listeners (those using a cochlear implant [CI] in one ear and hearing aid in the contralateral ear) by removing low-frequency information provided by the CI, thereby reducing acoustic-electric overlap.

Method

Subjects were adult CI subjects with at least 1 year of CI experience. Nine subjects were evaluated in the CI-only condition (control condition), and 26 subjects were evaluated in the bimodal condition. CIs were programmed with 4 experimental programs in which the low cutoff frequency (LCF) was progressively raised. Speech perception was evaluated using Consonant-Nucleus-Consonant words in quiet, AzBio sentences in background babble, and spondee words in background babble.

SUBMITTER: Fowler JR 

PROVIDER: S-EPMC4862739 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature