Spectral Profile Analysis and Speech-in-Noise Performance in Habitual Earphone Users with Normal Hearing

Area of Science:

• Audiology
• Neuroscience
• Public Health

Background:

• Personal listening devices are a growing source of recreational noise.
• This exposure may cause early auditory dysfunction, even with normal hearing.
• Understanding the impact on auditory processing is crucial.

Purpose of the Study:

• To investigate spectral profile analysis and speech perception in noise among earphone users.
• To examine the association between listening habits and auditory function.

Main Methods:

• 75 young adults with normal hearing were categorized into moderate-level users, high-level users, and nonusers.
• Audiological evaluation included spectral profile analysis and speech-in-noise tests (Quick Speech-in-Noise).
• Listening habits were assessed via interviews and real-ear measurements.

Main Results:

• High-level earphone users showed significantly higher spectral profile analysis thresholds at 1 kHz.
• Both user groups performed worse on speech-in-noise tests compared to nonusers.
• Poorer auditory performance correlated with longer listening duration and higher daily exposure.

Conclusions:

• Habitual high-level earphone use is linked to diminished speech-in-noise perception and altered spectral profile analysis in young adults.
• These findings suggest potential early auditory dysfunction from recreational noise exposure.
• Further research is needed to understand mechanisms and clinical implications.