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Pediatric evaluation of the ClearVoice™ speech enhancement algorithm in everyday life

Nathalie Noël-Petroff, Nathalie Mathias, Cécile Ulmann, Thierry Van Den Abbeele
  • Nathalie Noël-Petroff
    Hôpital Robert Debré, Paris, France
  • Cécile Ulmann
    Hôpital Robert Debré, Paris, France
  • Thierry Van Den Abbeele
    Hôpital Robert Debré, Paris, France


ClearVoice™ enables Advanced Bionics cochlear implant users to improve their speech understanding in difficult listening environments, without compromising performance in quiet situations. The aim of the study was to evaluate the benefits of ClearVoice in children. Children between six and fourteen years of age randomly tested two modalities of ClearVoice for one month each. The baseline program, HiRes 120™, and both ClearVoice programs were evaluated with a sentence test in quiet and noise. Parents and teachers completed a questionnaire related to everyday noisy situations. The switchover to ClearVoice was uneventful for both modalities. Adjustments to thresholds and comfort levels were required. Seven out of the nine children preferred a ClearVoice program. No impact of ClearVoice on performance in quiet was observed and both modalities of ClearVoice improved speech understanding in noise compared to the baseline program, significantly with ClearVoice high. Positive outcomes were obtained from the questionnaires and discussions with parents and children. This study showed that children benefited from using ClearVoice in their daily life. There was a clear trend towards improved speech understanding in noise with ClearVoice, without affecting performance in quiet; therefore ClearVoice can be used by children all day, without having to change programs.


cochlear implant, children, speech enhancement algorithm, ClearVoice™, hearing in noise.

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Submitted: 2013-08-06 10:23:12
Published: 2013-12-11 16:56:24
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Copyright (c) 2013 Nathalie Noël-Petroff, Nathalie Mathias, Cécile Ulmann, Thierry Van Den Abbeele

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