Masking release with changing fundamental frequency: Electric acoustic stimulation resembles normal hearing subjects

Hearing Research
Alice Barbara AuingerChristoph Arnoldner

Abstract

It has been shown that patients with electric acoustic stimulation (EAS) perform better in noisy environments than patients with a cochlear implant (CI). One reason for this could be the preserved access to acoustic low-frequency cues including the fundamental frequency (F0). Therefore, our primary aim was to investigate whether users of EAS experience a release from masking with increasing F0 difference between target talker and masking talker. The study comprised 29 patients and consisted of three groups of subjects: EAS users, CI users and normal-hearing listeners (NH). All CI and EAS users were implanted with a MED-EL cochlear implant and had at least 12 months of experience with the implant. Speech perception was assessed with the Oldenburg sentence test (OlSa) using one sentence from the test corpus as speech masker. The F0 in this masking sentence was shifted upwards by 4, 8, or 12 semitones. For each of these masker conditions the speech reception threshold (SRT) was assessed by adaptively varying the masker level while presenting the target sentences at a fixed level. A statistically significant improvement in speech perception was found for increasing difference in F0 between target sentence and masker sentence in EAS...Continue Reading

Citations

May 29, 2020·American Journal of Audiology·Verena MüllerRuth Lang-Roth
Feb 3, 2020·The Journal of the Acoustical Society of America·Hartmut MeisterVerena Müller
Jun 4, 2020·The Journal of the Acoustical Society of America·Viral D Tejani, Carolyn J Brown
Oct 23, 2020·Expert Review of Medical Devices·Nicole T Jiam, Charles Limb
Mar 21, 2021·Cochlear Implants International·Gayane SargsyanAnke Lesinski-Schiedat
Dec 29, 2020·Ear and Hearing·Alice Barbara AuingerChristoph Arnoldner

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