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Related Concept Videos

The Cochlea01:13

The Cochlea

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The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
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Trends in Adult Cochlear Implant Access and Uptake Across Ten Years of Reported Data.

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Related Experiment Video

Updated: May 1, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

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Long-term improvement of speech perception with the fine structure processing coding strategy in cochlear implants.

Andrea Kleine Punte1, Marc De Bodt, Paul Van de Heyning

  • 1University Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, and Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.

ORL; Journal for Oto-Rhino-Laryngology and Its Related Specialties
|April 2, 2014
PubMed
Summary

The fine structure processing (FSP) coding strategy significantly improved cochlear implant users' ability to hear in noisy environments over 24 months. This advanced FSP technology enhanced speech perception in noise, benefiting quality of life.

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Area of Science:

  • Audiology
  • Biomedical Engineering
  • Neuroscience

Background:

  • Cochlear implants (CIs) are vital for hearing restoration in deafened individuals.
  • Optimizing CI sound processing strategies is crucial for improving speech understanding in complex acoustic environments.
  • Long-term effects of advanced coding strategies on experienced CI users require thorough investigation.

Purpose of the Study:

  • To evaluate the long-term efficacy of the fine structure processing (FSP) coding strategy.
  • To assess the impact of FSP on speech perception in noise and quality of life in experienced cochlear implant users.
  • To compare FSP with the high-definition continuous interleaved sampling (HDCIS) strategy.

Main Methods:

  • A prospective comparative clinical trial involving 32 experienced postlingually deafened CI recipients.
  • Participants were upgraded to the Med-EL Opus 2 audio processor with either FSP or HDCIS coding strategies.
  • Speech perception in noise and the Speech, Spatial and Qualities (SSQ) questionnaire were administered at baseline and 6, 12, and 24 months post-upgrade.

Main Results:

  • The FSP group demonstrated a significant long-term improvement in speech perception in noise, with signal-to-noise ratio (SNR) improving from 16.2 dB to 3.0 dB over 24 months.
  • No significant improvement in speech perception in noise was observed in the HDCIS group over time.
  • The FSP strategy resulted in a significant benefit reported by users on the SSQ questionnaire.

Conclusions:

  • The FSP coding strategy, implemented in the Med-EL Opus 2 audio processor, enhances speech perception in noise.
  • The beneficial effects of FSP on speech perception in noise emerge gradually, becoming significant after 12 months and continuing to improve up to 24 months.
  • FSP offers a valuable advancement for experienced cochlear implant users seeking improved auditory performance in challenging listening conditions.