Effect of fast AGC on cochlear implant speech intelligibility

Phyu P. Khing*, Eliathamby Ambikairajah, Brett A. Swanson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

2 Citations (Scopus)

Abstract

This study investigated the effect of fast-acting Automatic Gain Control (AGC) on the speech intelligibility of cochlear implant users as a function of presentation level. Both low and high signal-to-noise ratio conditions were investigated. The AGC substantially reduced the amount of clipping, but did not give consistent improvements in intelligibility. With no AGC, and high signal-to-noise ratio, speech scores were not significantly degraded until more than 25% of stimulation pulses were affected by clipping.

Original languageEnglish
Title of host publicationICASSP 2011
Subtitle of host publicationProceedings of the 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages285-288
Number of pages4
ISBN (Electronic)9781457705397, 9781457705373
ISBN (Print)9781457705380
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Prague, Czech Republic
Duration: 22 May 201127 May 2011

Other

Other36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
CountryCzech Republic
CityPrague
Period22/05/1127/05/11

Keywords

  • Automatic Gain Control
  • cochlear implant
  • compression
  • speech intelligibility

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