gms | German Medical Science

86th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

13.05. - 16.05.2015, Berlin

Article

Send article

Bass frequency perception as a function of coding strategy and electrode type

Meeting Abstract

Search Medline for

  • corresponding author Richard T. Penninger - Department of Otolaryngology-Head and Neck Surgery, Medical University, Hannover, Germany; Cluster of Excellence Hearing4all
  • A. T. Roy - Harvard Medical School, Boston, MA, USA
  • M. S. Pearl - Division of Interventional Neuroradiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
  • W. Wuerfel - Department of Otolaryngology-Head and Neck Surgery, Medical University, Hannover, Germany; Cluster of Excellence Hearing4all
  • P. Jiradejvong - Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
  • C. Carver - Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
  • Andreas Büchner - Department of Otolaryngology-Head and Neck Surgery, Medical University, Hannover, Germany; Cluster of Excellence Hearing4all
  • Charles J. Limb - Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, MD, USA; Peabody Conservatory of Music, Johns Hopkins University, Baltimore, MD, USA

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. 86. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. Berlin, 13.-16.05.2015. Düsseldorf: German Medical Science GMS Publishing House; 2015. Doc15hnod435

doi: 10.3205/15hnod435, urn:nbn:de:0183-15hnod4351

Published: March 26, 2015

© 2015 Penninger et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License. You are free: to Share - to copy, distribute and transmit the work, provided the original author and source are credited. See license information at http://creativecommons.org/licenses/by-nc-nd/3.0/.

Outline

Text

Introduction: Despite remarkable success with language perception, music perception is typically poor for cochlear implant (CI) users. CI users subjectively report poorer musical sound quality following implantation compared to normal hearing (NH) subjects. Musical sound quality is traditionally assessed via questionnaires or rating scales.

The goal of the present study is to investigate how musical sound quality is rated on Med-El Flex 20 and 24 mm electrodes.

Methods: Five NH and five CI subjects participated in the experiment. Four CI subjects had a Med-El Flex 20 mm electrode and one had a Med-El Flex EAS 24 mm electrode. The subjects were asked to rate the sound quality of 25 altered musical stimuli in a Cochlear Implant MUltiple Stimulus with Hidden Reference and Anchor (CI-MUSHRA) test. The stimuli consisted of one unaltered stimulus and a 200, 400, 600, 800 and 1000 Hz high-pass filtered version. One of the stimuli was a 1000-1200 Hz band-pass filtered version (anchor).

Results: Preliminary results show that NH subjects are able to rank the presented stimuli according to their sound quality. CI subjects performed a lot worse and were unable to discriminate between the unaltered reference, the 200 and the 400 Hz high-pass filtered versions. The sound quality ratings of the CI subjects were overall a lot worse compared to the NH subjects.

Conclusion: One of the reasons of the impaired sound quality ratings for the CI subjects could be their short implant array length.

Unterstützt durch: Med-El

Der Erstautor weist auf folgenden Interessenkonflikt hin: Med-El unterstützt die Reisekosten der Probanden und die Kongress-, Reise- und Hotelkosten zur 86. Jahresversammlung.