Mobile Internet Telephony Improves Speech Intelligibility and Quality for Cochlear Implant Recipients

The objective of this study was to investigate the benefit of mobile Voice over Internet protocol (VoIP) over conventional mobile phone calls (Global System for Mobile Communications, GSM) on speech intelligibility and quality for cochlear implant (CI) recipients. Study Design: Cross-sectional, prospective. Setting: Tertiary referral center. Patients: A volunteer sample of experienced, German-speaking, adult CI recipients was considered. Volunteers with less than 50% aided monosyllabic word discrimination were excluded. Intervention: Smartphone communication was changed from GSM to VoIP on two separate devices (A and B). Main Outcome Measures: Speech intelligibility was assessed with the Hochmair-Shulz-Moser (HSM) test in noise, speech quality with the mean opinion score (MO...

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