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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

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Published on: March 24, 2023

Better speech recognition in noise with the fine structure processing coding strategy.

Katrien Vermeire1, Andrea Kleine Punte, Paul Van de Heyning

  • 1C. Doppler Laboratory for Active Implantable Systems, Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria. katrien.vermeire@uibk.ac.at

ORL; Journal for Oto-Rhino-Laryngology and Its Related Specialties
|September 18, 2010
PubMed
Summary
This summary is machine-generated.

The new fine structure processing (FSP) speech coding strategy significantly improved speech perception in noise over 12 months for cochlear implant users. This enhancement in coding fine structure in lower frequencies benefits hearing in challenging acoustic environments.

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Area of Science:

  • Audiology
  • Speech Processing
  • Neuroscience

Background:

  • A novel speech coding strategy, fine structure processing (FSP), has been introduced.
  • FSP aims to enhance the coding of temporal fine structure in speech signals.

Purpose of the Study:

  • To evaluate the effectiveness of the FSP speech coding strategy in cochlear implant users.
  • To compare FSP performance against high-definition continuous interleaved sampling (HDCIS).

Main Methods:

  • 32 MED-EL PULSARCI(100) users switched from TEMPO+ to OPUS 2 processors.
  • 22 subjects used FSP, 10 used HDCIS.
  • Speech reception in noise and the Speech Spatial and Qualities of Hearing Scale (SSQ) were assessed over 12 months.

Main Results:

  • The FSP group showed a significant improvement in speech reception threshold (6.5 dB benefit after 12 months, p < 0.001).
  • Significant improvement in the spatial subscore of the SSQ questionnaire was observed in the FSP group (p = 0.009).
  • No significant changes were noted in the HDCIS group.

Conclusions:

  • Enhancing fine structure coding in lower frequencies, as with FSP, improves speech perception in noise.
  • The FSP strategy offers a significant long-term benefit for cochlear implant users in noisy environments.