Speech recognition and subjective perceptions of neck-loop FM receivers with cochlear implants

Area of Science:

• Audiology
• Biomedical Engineering
• Rehabilitation Science

Background:

• Cochlear implants (CIs) are vital for hearing restoration but can struggle with background noise and distance.
• Communication difficulties persist for many CI users, impacting daily life.
• Frequency modulation (FM) systems are assistive listening devices that can improve signal clarity.

Purpose of the Study:

• To evaluate the effectiveness of electromagnetically coupled FM neck-loop receivers for CI users.
• To assess if FM neck-loop receivers can mitigate common communication challenges faced by adults and adolescents with CIs.

Main Methods:

• A trial involving 14 participants with CIs using an FM neck-loop receiver.
• Pre- and post-trial assessments included speech-recognition-in-noise tests and subjective rating scales.
• Participants maintained journals to document their experiences with the FM system.

Main Results:

• Significant improvements in speech recognition in noise were observed with the FM system.
• No performance decline was noted between pre- and post-trial sessions.
• Subjective feedback indicated enhanced listening in noisy environments and at a distance from the sound source.

Conclusions:

• Neck-loop FM receivers offer a significant benefit for CI users, improving speech recognition in noise.
• These systems address everyday listening challenges for individuals with CIs.
• Further research is recommended for diverse neck-loop receivers and CI sound processors.