Influence of Telecommunication Modality, Internet Transmission Quality, and Accessories on Speech Perception in Cochlear Implant Users

Telecommunication is limited or even impossible for more than one-thirds of all cochlear implant (CI) users. We sought therefore to study the impact of voice quality on speech perception with voice over Internet protocol (VoIP) under real and adverse network conditions. Telephone speech perception w...

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Bibliographic Details
Published in:Journal of medical Internet research 2017-04, Vol.19 (4), p.e135-e135
Main Authors: Mantokoudis, Georgios, Koller, Roger, Guignard, Jérémie, Caversaccio, Marco, Kompis, Martin, Senn, Pascal
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Cochlear Implants
Female
Humans
Induction
Internet
Internet - instrumentation
Internet - standards
Internet telephony
Language
Male
Microcomputers
Middle Aged
Original Paper
Perceptions
Personal computers
Speech
Speech Intelligibility
Speech Perception
Telecommunications
Telecommunications - instrumentation
Telecommunications - standards
Telephone
Young Adult
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Summary:Telecommunication is limited or even impossible for more than one-thirds of all cochlear implant (CI) users. We sought therefore to study the impact of voice quality on speech perception with voice over Internet protocol (VoIP) under real and adverse network conditions. Telephone speech perception was assessed in 19 CI users (15-69 years, average 42 years), using the German HSM (Hochmair-Schulz-Moser) sentence test comparing Skype and conventional telephone (public switched telephone networks, PSTN) transmission using a personal computer (PC) and a digital enhanced cordless telecommunications (DECT) telephone dual device. Five different Internet transmission quality modes and four accessories (PC speakers, headphones, 3.5 mm jack audio cable, and induction loop) were compared. As a secondary outcome, the subjective perceived voice quality was assessed using the mean opinion score (MOS). Speech telephone perception was significantly better (median 91.6%, P 15%) were not superior to conventional telephony. In addition, there were no significant differences between the tested accessories (P>.05) using a PC. Coupling a Skype DECT phone device with an audio cable to the CI, however, resulted in higher speech perception (median 65%) and subjective MOS scores (3.2) than using PSTN (median 7.5%, P
ISSN:1438-8871
1439-4456
1438-8871
DOI:10.2196/jmir.6954