A "virtual hearing aid" for comparing hearing aids in children: a double-blind crossover study

Area of Science:

• Audiology
• Hearing Aid Technology
• Pediatric Audiology

Background:

• Assessing hearing aid efficacy in children is crucial for development.
• Traditional diagnostic methods may not fully capture real-world hearing aid performance.
• Digital hearing aids offer advanced features compared to analog models.

Purpose of the Study:

• To evaluate the effectiveness of a "virtual hearing aid" for comparing different hearing aid technologies.
• To compare the performance of a digital hearing aid against an analog hearing aid in children with sensorineural hearing loss.
• To determine if the "virtual hearing aid" can provide significant results where routine methods fail.

Main Methods:

• A "virtual hearing aid" system was employed for direct, in-situ comparison of hearing aids.
• 17 schoolchildren with moderate to severe sensorineural hearing loss participated.
• Comparisons included speech recognition tests, loudness scaling, questionnaires, and the "virtual hearing aid" under double-blind conditions.

Main Results:

• Subjective assessments showed a clear preference for the digital hearing aid.
• Routine diagnostic methods did not yield significant performance differences.
• The "virtual hearing aid" identified significant differences in subjective comparison and speech recognition tasks.

Conclusions:

• The "virtual hearing aid" is a suitable tool for directly comparing hearing aids under double-blind conditions.
• This technology offers advantages over routine diagnostic methods for assessing hearing aid performance in children.
• Significant differences in hearing aid performance can be detected using the "virtual hearing aid".