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Updated: Jun 12, 2026

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An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
Published on: March 13, 2026
[Speech perception in noise with and without FM technology].
H Hanschmann1, S Wiehe, J Müller-Mazzotta
1Klinik für Phoniatrie und Pädaudiologie, Zentrum für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Giessen und Marburg GmbH, Deutschhausstrasse 3, 35037 Marburg. holger.hanschmann@med.uni-marburg.de
HNO
|June 3, 2010
Summary
Children with auditory processing disorders (APD) struggle with speech in noise. FM systems significantly improve speech intelligibility for these children, especially those with more severe auditory selection problems.
Area of Science:
- Auditory Neuroscience
- Speech Perception
- Pediatric Audiology
Context:
- Central auditory processing disorder (CAPD) impairs speech perception, particularly in noisy environments like schools.
- CAPD in children can hinder language, reading, and writing development.
- Poor classroom acoustics worsen auditory challenges for children with CAPD.
Purpose:
- To evaluate the effectiveness of FM systems in improving speech intelligibility for children with and without auditory processing disorders.
- To determine if children with more significant auditory processing deficits benefit more from FM system use.
Summary:
- 66 children (6-11 years) were tested using the Oldenburg sentence test in noise (OlSa) with and without an FM system.
- Children were categorized into control (normal OlSa), group 2a (unremarkable re-test), and group 2b (abnormal re-test).
- All children showed improved speech intelligibility with the FM system, with the most significant gains in group 2b (9.53 dB S/N).
Impact:
- FM systems are highly beneficial for improving speech understanding in children with auditory processing difficulties.
- The findings support the integration of FM systems in the diagnosis and therapeutic management of children with CAPD.
- Early intervention with assistive listening devices can mitigate academic and developmental challenges associated with CAPD.
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