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Related Experiment Videos

Solutions to electromagnetic interference problems between cochlear implants and GSM phones.

Martti J Sorri1, Peeta J Piiparinen, Kerttu H Huttunen

  • 1Department of Otorhinolaryngology, University of Oulu, Finland. martti.sorri@oulu.fi

IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
|March 28, 2006
PubMed
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New assistive listening devices improve speech recognition for cochlear implant users experiencing electromagnetic compatibility issues with digital cellular phones. These prototypes significantly reduce interference, enhancing phone usability.

Area of Science:

  • Audiology
  • Biomedical Engineering
  • Electromagnetics

Background:

  • Electromagnetic compatibility (EMC) issues can hinder digital cellular phone use for cochlear implant (CI) recipients.
  • Assistive listening devices (ALDs) are crucial for mitigating these interference problems.

Purpose of the Study:

  • To evaluate the effectiveness of three novel ALD prototypes designed to reduce EMC problems for CI users.
  • To quantify the improvement in speech recognition and subjective listening experience with the prototypes.

Main Methods:

  • Ten experienced CI users participated in the study.
  • Speech recognition was tested using sentence tests in quiet.
  • Subjects used a landline phone, a digital cellular phone alone, and the digital cellular phone with each of the three prototypes.

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Main Results:

  • Digital cellular phone use alone resulted in the poorest speech recognition (29% average score) and subjective ratings.
  • The ALD prototypes improved speech recognition scores by 10-21 percentage points on average.
  • Subjective assessments of clarity, sound quality, and overall judgment were significantly better with the prototypes.

Conclusions:

  • The developed ALD prototypes effectively diminish EMC problems, enhancing speech recognition for CI users on digital cellular phones.
  • Further advancements in EMC for both CI systems and digital cellular phones are necessary for seamless communication.
  • Continued development and adoption of ALDs are recommended to improve mobile phone accessibility for all CI recipients.