Continuous improvement in Mandarin lexical tone perception as the number of channels increased: A simulation study of cochlear implant

Yong-Song Lin, Fei Peng Lee, I. Shun Huang, Shu Chen Peng

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Conclusion. With reference to English phoneme recognition, where performance usually does not improve after six or eight channels in cochlear implants (CIs), increasing total channel numbers continuously improved perception of Mandarin tones. Objective. To test our hypothesis that current CI strategies might be modified to improve Mandarin lexical tonal perception. Materials and methods. Lexical tonal perception tests using 48 monosyllables in Mandarin Chinese were conducted in 32 native Mandarin speakers with normal hearing. The performance of tonal perception was compared among the controlled factors, which were total channel number, number of channels allocated to the F0 spectrum, and whether there were spectral shifts in the electrode configuration. The experimental condition that preserves fine structure was used as a comparison. Results. The signal processing strategy using 16 channels - which is technically possible with current CI devices - produced better tonal perception than those using 12 or 8 channels. Increasing the number of fundamental channels did not improve tonal perception, and spectral shifts did not change tonal perception. An experimental condition (FiC12) that preserves the fine structure produced significantly better overall scores for tone perception than other experimental conditions with envelope strategies.

Original languageEnglish
Pages (from-to)505-514
Number of pages10
JournalActa Oto-Laryngologica
Volume127
Issue number5
DOIs
Publication statusPublished - 2007

Fingerprint

Cochlear Implants
Hearing
Electrodes
Equipment and Supplies

Keywords

  • Cochlear implant
  • Fine structure
  • Frequency allocation
  • Mandarin lexical tone
  • Tonal perception

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Continuous improvement in Mandarin lexical tone perception as the number of channels increased : A simulation study of cochlear implant. / Lin, Yong-Song; Lee, Fei Peng; Huang, I. Shun; Peng, Shu Chen.

In: Acta Oto-Laryngologica, Vol. 127, No. 5, 2007, p. 505-514.

Research output: Contribution to journalArticle

@article{502b835211f84c6ebacd0409c801a4ca,
title = "Continuous improvement in Mandarin lexical tone perception as the number of channels increased: A simulation study of cochlear implant",
abstract = "Conclusion. With reference to English phoneme recognition, where performance usually does not improve after six or eight channels in cochlear implants (CIs), increasing total channel numbers continuously improved perception of Mandarin tones. Objective. To test our hypothesis that current CI strategies might be modified to improve Mandarin lexical tonal perception. Materials and methods. Lexical tonal perception tests using 48 monosyllables in Mandarin Chinese were conducted in 32 native Mandarin speakers with normal hearing. The performance of tonal perception was compared among the controlled factors, which were total channel number, number of channels allocated to the F0 spectrum, and whether there were spectral shifts in the electrode configuration. The experimental condition that preserves fine structure was used as a comparison. Results. The signal processing strategy using 16 channels - which is technically possible with current CI devices - produced better tonal perception than those using 12 or 8 channels. Increasing the number of fundamental channels did not improve tonal perception, and spectral shifts did not change tonal perception. An experimental condition (FiC12) that preserves the fine structure produced significantly better overall scores for tone perception than other experimental conditions with envelope strategies.",
keywords = "Cochlear implant, Fine structure, Frequency allocation, Mandarin lexical tone, Tonal perception",
author = "Yong-Song Lin and Lee, {Fei Peng} and Huang, {I. Shun} and Peng, {Shu Chen}",
year = "2007",
doi = "10.1080/00016480600951434",
language = "English",
volume = "127",
pages = "505--514",
journal = "Acta Oto-Laryngologica",
issn = "0001-6489",
publisher = "Informa Healthcare",
number = "5",

}

TY - JOUR

T1 - Continuous improvement in Mandarin lexical tone perception as the number of channels increased

T2 - A simulation study of cochlear implant

AU - Lin, Yong-Song

AU - Lee, Fei Peng

AU - Huang, I. Shun

AU - Peng, Shu Chen

PY - 2007

Y1 - 2007

N2 - Conclusion. With reference to English phoneme recognition, where performance usually does not improve after six or eight channels in cochlear implants (CIs), increasing total channel numbers continuously improved perception of Mandarin tones. Objective. To test our hypothesis that current CI strategies might be modified to improve Mandarin lexical tonal perception. Materials and methods. Lexical tonal perception tests using 48 monosyllables in Mandarin Chinese were conducted in 32 native Mandarin speakers with normal hearing. The performance of tonal perception was compared among the controlled factors, which were total channel number, number of channels allocated to the F0 spectrum, and whether there were spectral shifts in the electrode configuration. The experimental condition that preserves fine structure was used as a comparison. Results. The signal processing strategy using 16 channels - which is technically possible with current CI devices - produced better tonal perception than those using 12 or 8 channels. Increasing the number of fundamental channels did not improve tonal perception, and spectral shifts did not change tonal perception. An experimental condition (FiC12) that preserves the fine structure produced significantly better overall scores for tone perception than other experimental conditions with envelope strategies.

AB - Conclusion. With reference to English phoneme recognition, where performance usually does not improve after six or eight channels in cochlear implants (CIs), increasing total channel numbers continuously improved perception of Mandarin tones. Objective. To test our hypothesis that current CI strategies might be modified to improve Mandarin lexical tonal perception. Materials and methods. Lexical tonal perception tests using 48 monosyllables in Mandarin Chinese were conducted in 32 native Mandarin speakers with normal hearing. The performance of tonal perception was compared among the controlled factors, which were total channel number, number of channels allocated to the F0 spectrum, and whether there were spectral shifts in the electrode configuration. The experimental condition that preserves fine structure was used as a comparison. Results. The signal processing strategy using 16 channels - which is technically possible with current CI devices - produced better tonal perception than those using 12 or 8 channels. Increasing the number of fundamental channels did not improve tonal perception, and spectral shifts did not change tonal perception. An experimental condition (FiC12) that preserves the fine structure produced significantly better overall scores for tone perception than other experimental conditions with envelope strategies.

KW - Cochlear implant

KW - Fine structure

KW - Frequency allocation

KW - Mandarin lexical tone

KW - Tonal perception

UR - http://www.scopus.com/inward/record.url?scp=34247390520&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34247390520&partnerID=8YFLogxK

U2 - 10.1080/00016480600951434

DO - 10.1080/00016480600951434

M3 - Article

C2 - 17453477

AN - SCOPUS:34247390520

VL - 127

SP - 505

EP - 514

JO - Acta Oto-Laryngologica

JF - Acta Oto-Laryngologica

SN - 0001-6489

IS - 5

ER -