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

BACKGROUND: Telecommunication is limited or even impossible for more than one-thirds of all cochlear implant (CI) users. OBJECTIVE: 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. METHOD...

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Autores principales: Mantokoudis, Georgios, Koller, Roger, Guignard, Jérémie, Caversaccio, Marco, Kompis, Martin, Senn, Pascal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: JMIR Publications 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5422655/
https://www.ncbi.nlm.nih.gov/pubmed/28438727
http://dx.doi.org/10.2196/jmir.6954
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author Mantokoudis, Georgios
Koller, Roger
Guignard, Jérémie
Caversaccio, Marco
Kompis, Martin
Senn, Pascal
author_facet Mantokoudis, Georgios
Koller, Roger
Guignard, Jérémie
Caversaccio, Marco
Kompis, Martin
Senn, Pascal
author_sort Mantokoudis, Georgios
collection PubMed
description BACKGROUND: Telecommunication is limited or even impossible for more than one-thirds of all cochlear implant (CI) users. OBJECTIVE: 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. METHODS: 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). RESULTS: Speech telephone perception was significantly better (median 91.6%, P<.001) with Skype compared with PSTN (median 42.5%) under optimal conditions. Skype calls under adverse network conditions (data packet loss > 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<.001). CONCLUSIONS: Skype calls significantly improve speech perception for CI users compared with conventional telephony under real network conditions. Listening accessories do not further improve listening experience. Current Skype DECT telephone devices do not fully offer technical advantages in voice quality.
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spelling pubmed-54226552017-05-17 Influence of Telecommunication Modality, Internet Transmission Quality, and Accessories on Speech Perception in Cochlear Implant Users Mantokoudis, Georgios Koller, Roger Guignard, Jérémie Caversaccio, Marco Kompis, Martin Senn, Pascal J Med Internet Res Original Paper BACKGROUND: Telecommunication is limited or even impossible for more than one-thirds of all cochlear implant (CI) users. OBJECTIVE: 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. METHODS: 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). RESULTS: Speech telephone perception was significantly better (median 91.6%, P<.001) with Skype compared with PSTN (median 42.5%) under optimal conditions. Skype calls under adverse network conditions (data packet loss > 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<.001). CONCLUSIONS: Skype calls significantly improve speech perception for CI users compared with conventional telephony under real network conditions. Listening accessories do not further improve listening experience. Current Skype DECT telephone devices do not fully offer technical advantages in voice quality. JMIR Publications 2017-04-24 /pmc/articles/PMC5422655/ /pubmed/28438727 http://dx.doi.org/10.2196/jmir.6954 Text en ©Georgios Mantokoudis, Roger Koller, Jérémie Guignard, Marco Caversaccio, Martin Kompis, Pascal Senn. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 24.04.2017. https://creativecommons.org/licenses/by/2.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/ (https://creativecommons.org/licenses/by/2.0/) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.
spellingShingle Original Paper
Mantokoudis, Georgios
Koller, Roger
Guignard, Jérémie
Caversaccio, Marco
Kompis, Martin
Senn, Pascal
Influence of Telecommunication Modality, Internet Transmission Quality, and Accessories on Speech Perception in Cochlear Implant Users
title Influence of Telecommunication Modality, Internet Transmission Quality, and Accessories on Speech Perception in Cochlear Implant Users
title_full Influence of Telecommunication Modality, Internet Transmission Quality, and Accessories on Speech Perception in Cochlear Implant Users
title_fullStr Influence of Telecommunication Modality, Internet Transmission Quality, and Accessories on Speech Perception in Cochlear Implant Users
title_full_unstemmed Influence of Telecommunication Modality, Internet Transmission Quality, and Accessories on Speech Perception in Cochlear Implant Users
title_short Influence of Telecommunication Modality, Internet Transmission Quality, and Accessories on Speech Perception in Cochlear Implant Users
title_sort influence of telecommunication modality, internet transmission quality, and accessories on speech perception in cochlear implant users
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5422655/
https://www.ncbi.nlm.nih.gov/pubmed/28438727
http://dx.doi.org/10.2196/jmir.6954
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