Related Experiment Video
Updated: Feb 19, 2026
06:04
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
874
Speech audiometry and data logging in CI patients : Implications for adequate test levels.
M Hey1, T Hocke2, P Ambrosch3
1Klinik für Hals‑, Nasen‑, Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Straße 3 (Haus 27), 24105, Kiel, Germany. Matthias.Hey@uksh.de.
HNO
|November 10, 2017
Summary
Cochlear implant (CI) diagnostics should include speech tests at lower levels, around 50 dB, to better reflect real-world listening environments. This ensures optimal speech intelligibility for CI users in everyday situations.
Area of Science:
- Audiology
- Speech Perception
- Cochlear Implantation
Background:
- Postoperative cochlear implant (CI) diagnostics involve speech comprehension tests to monitor outcomes.
- Recent trends show improved speech intelligibility in quiet and softer sounds.
- Modern CI systems allow for data logging of patients' acoustic environments.
Purpose of the Study:
- To determine which speech test levels accurately reflect an individual's listening environment.
- To explore how to incorporate these relevant levels into clinical audiometric settings.
Main Methods:
- Retrospective analysis of data logs from 263 adult CI patients.
- Evaluation of sound levels and listening situations (quiet, speech, noise, music, wind).
- Monosyllabic word comprehension testing in experienced CI users at presentation levels of 40-80 dB.
Main Results:
- Data logging revealed maximum speech signal occurrence in the 50-59 dB range for adult CI users.
- This highlights the importance of everyday speech comprehension at levels below 60 dB.
Conclusions:
- Individual CI speech processor optimization should extend beyond 65-70 dB to include lower sound levels.
- Speech testing at 50 dB is a valuable addition for clinical audiology.
