Ghent University Academic Bibliography

Advanced

Perception of polyphony with cochlear implants for 2 and 3 simultaneous pitches

Richard Penninger, Eugen Kludt, Charles J Limb, Marc Leman UGent, Ingeborg Dhooge UGent and Andreas Buechner (2014) OTOLOGY & NEUROTOLOGY. 35(3). p.431-436
abstract
Hypothesis: It was hypothesized that cochlear implant (CI) subjects would be able to correctly identify one, two and three simultaneous pitches through direct electrical stimulation. We further hypothesized that the location on the implant array and the fundamental frequency of the pitches would have an impact on the performance. Background: "They gave me back speech but not music." is a sentence commonly heard by CI subjects. One of the reasons is that in music, multiple streams are frequently played at the same time which is an essential feature of harmony. Current CI speech processors do not allow CI users to perceive such complex polyphonic sounds. Methods: In the present study the authors assessed the ability of CI subjects to perceive simultaneous modulation frequencies based on direct electrical stimulation. Ten CI subjects were asked to identify one, two and three simultaneous pitches applied on different electrodes using sinusoidal amplitude modulation. All stimuli were loudness balanced before the actual identification task. Results: Subjects were able to identify one, two and three simultaneous pitches. The further the distance between the two electrodes, the better was the performance in the two-pitch condition. The distance between the modulation frequencies had a significant effect on the performance in the two and three pitch condition. Conclusion: Subjects are able to identify complex polyphonic stimuli based on the number of active electrodes. The additional polyphonic rate pitch cue improves performance in some conditions.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
RECOGNITION, NOISE, SPEECH, HEARING, ELECTRICAL-STIMULATION, Rate pitch, Polyphonic pitch perception, Pitch perception, Cochlear implants
journal title
OTOLOGY & NEUROTOLOGY
Otol. Neurotol.
volume
35
issue
3
pages
431 - 436
Web of Science type
Article
Web of Science id
000331732300013
JCR category
OTORHINOLARYNGOLOGY
JCR impact factor
1.787 (2014)
JCR rank
17/44 (2014)
JCR quartile
2 (2014)
ISSN
1531-7129
DOI
10.1097/MAO.0000000000000255
project
EBRAMUS (Europe, Brain and Music: New perspectives for stimulating cognitive and sensory processes)
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4182810
handle
http://hdl.handle.net/1854/LU-4182810
date created
2013-11-11 10:40:42
date last changed
2016-12-19 15:44:51
@article{4182810,
  abstract     = {Hypothesis: It was hypothesized that cochlear implant (CI) subjects would be able to correctly identify one, two and three simultaneous pitches through direct electrical stimulation. We further hypothesized that the location on the implant array and the fundamental frequency of the pitches would have an impact on the performance.
Background: {\textacutedbl}They gave me back speech but not music.{\textacutedbl} is a sentence commonly heard by CI subjects. One of the reasons is that in music, multiple streams are frequently played at the same time which is an essential feature of harmony. Current CI speech processors do not allow CI users to perceive such complex polyphonic sounds.
Methods: In the present study the authors assessed the ability of CI subjects to perceive simultaneous modulation frequencies based on direct electrical stimulation. Ten CI subjects were asked to identify one, two and three simultaneous pitches applied on different electrodes using sinusoidal amplitude modulation. All stimuli were loudness balanced before the actual identification task.
Results: Subjects were able to identify one, two and three simultaneous pitches. The further the distance between the two electrodes, the better was the performance in the two-pitch condition. The distance between the modulation frequencies had a significant effect on the performance in the two and three pitch condition.
Conclusion: Subjects are able to identify complex polyphonic stimuli based on the number of active electrodes. The additional polyphonic rate pitch cue improves performance in some conditions.},
  author       = {Penninger, Richard and Kludt, Eugen and Limb, Charles J and Leman, Marc and Dhooge, Ingeborg and Buechner, Andreas },
  issn         = {1531-7129},
  journal      = {OTOLOGY \& NEUROTOLOGY},
  keyword      = {RECOGNITION,NOISE,SPEECH,HEARING,ELECTRICAL-STIMULATION,Rate pitch,Polyphonic pitch perception,Pitch perception,Cochlear implants},
  language     = {eng},
  number       = {3},
  pages        = {431--436},
  title        = {Perception of polyphony with cochlear implants for 2 and 3 simultaneous pitches},
  url          = {http://dx.doi.org/10.1097/MAO.0000000000000255},
  volume       = {35},
  year         = {2014},
}

Chicago
Penninger, Richard, Eugen Kludt, Charles J Limb, Marc Leman, Ingeborg Dhooge, and Andreas Buechner. 2014. “Perception of Polyphony with Cochlear Implants for 2 and 3 Simultaneous Pitches.” Otology & Neurotology 35 (3): 431–436.
APA
Penninger, R., Kludt, E., Limb, C. J., Leman, M., Dhooge, I., & Buechner, A. (2014). Perception of polyphony with cochlear implants for 2 and 3 simultaneous pitches. OTOLOGY & NEUROTOLOGY, 35(3), 431–436.
Vancouver
1.
Penninger R, Kludt E, Limb CJ, Leman M, Dhooge I, Buechner A. Perception of polyphony with cochlear implants for 2 and 3 simultaneous pitches. OTOLOGY & NEUROTOLOGY. 2014;35(3):431–6.
MLA
Penninger, Richard, Eugen Kludt, Charles J Limb, et al. “Perception of Polyphony with Cochlear Implants for 2 and 3 Simultaneous Pitches.” OTOLOGY & NEUROTOLOGY 35.3 (2014): 431–436. Print.