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Related Concept Videos

Hearing01:31

Hearing

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
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Related Experiment Video

Updated: Apr 28, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Smartphone-based hearing screening in noisy environments.

Youngmin Na1, Hyo Sung Joo2, Hyejin Yang3

  • 1School of Electrical Engineering, Biomedical Engineering, University of Ulsan, Ulsan 680-749, Korea. nayoungmin39@gmail.com.

Sensors (Basel, Switzerland)
|June 14, 2014
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Summary

Early detection of hearing loss is crucial. This study introduces a smartphone hearing test with a noise-correction algorithm, enabling accurate hearing screening anywhere by compensating for environmental noise effects.

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Area of Science:

  • Audiology
  • Mobile Health Technology
  • Signal Processing

Background:

  • Early detection of hearing loss is vital for effective management and mitigating negative impacts.
  • Environmental noise can interfere with hearing screening accuracy, causing a hearing threshold shift (HTS).

Purpose of the Study:

  • To develop and validate a smartphone-based hearing screening method.
  • To implement a noise-correction algorithm to counteract the effects of environmental noise on hearing threshold measurements.

Main Methods:

  • Calibrated a smartphone's built-in microphone and headphones for standardized measurements.
  • Developed and applied a correction algorithm to account for hearing threshold shifts caused by white or babble noise.
  • Systematically investigated hearing threshold shifts in various noise levels.

Main Results:

  • The developed smartphone hearing screening method, incorporating noise correction, demonstrated close estimation of hearing thresholds compared to pure tone audiometry.
  • The correction algorithm effectively reduced the impact of environmental noise on hearing sensitivity measurements.

Conclusions:

  • The proposed smartphone-based hearing test offers a ubiquitous and accessible tool for hearing screening.
  • This method can alert individuals to potential hearing loss, facilitating timely intervention.