Related Experiment Video
Updated: Apr 2, 2026
06:04
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
939
Effect of speech recognition test presentation on cochlear implant user performance.
Aline Faria de Sousa1, Lucas Bevilacqua Alves da Costa2, Rubens Vuono de Brito Neto3
1Alfa Instituto de Comunicação e Audição - São Paulo (SP), Brasil.
Codas
|April 1, 2026
Summary
Speech recognition testing for cochlear implant (CI) users shows that background noise can be as detrimental as recorded speech. Standardizing test administration is crucial for accurate auditory performance assessment.
Area of Science:
- Audiology
- Neuroscience
- Speech-Language Pathology
Background:
- Cochlear implants (CI) aim to restore hearing but speech recognition varies significantly among users.
- Standardized testing is essential for reliable assessment of CI user performance.
- The impact of presentation mode (live vs. recorded) and background noise on speech recognition in CI users requires further investigation.
Purpose of the Study:
- To compare speech recognition performance in CI users under monitored live voice (MLV) and recorded audio conditions.
- To analyze the effects of quiet versus noisy environments on speech recognition in CI users.
- To determine the combined influence of presentation mode and background noise on auditory performance in CI users.
Main Methods:
- A cross-sectional study involving 48 CI users.
- Speech recognition testing administered under four conditions: MLV in quiet, recorded audio in quiet, MLV in noise, and recorded audio with noise.
- Nonparametric statistical analyses were conducted with a 95% confidence interval (p < 0.05).
Main Results:
- Highest performance was observed with MLV in quiet, but with greater response variability.
- Speech recognition in MLV-in-noise and recorded-audio-in-quiet conditions were comparable.
- Lowest performance occurred in the recorded-in-noise condition, highlighting the negative impact of combined noise and lack of live speech cues.
Conclusions:
- Both presentation mode and background noise significantly influence speech recognition in CI users.
- Background noise may be as detrimental to performance as switching from live to recorded speech.
- Standardizing the administration of speech recognition tests is critical for accurate evaluation of CI users' auditory capabilities.
