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Related Concept Videos

Hearing01:31

Hearing

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.
Perception of Sound Waves01:01

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
Auditory Perception01:17

Auditory Perception

The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...
Auditory Pathway01:15

Auditory Pathway

Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
Sound Intensity Level00:53

Sound Intensity Level

Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
Sound Waves: Interference00:53

Sound Waves: Interference

Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...

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Impulsive noise: A brief review.

Hearing research·2016
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Letter to the Editor: Scientific Rigor Required for a Re-Examination of Exchange Rate for Occupational Noise Measurements Re: Dobie, R.A., & Clark, W.W. (2014) Exchange Rates for Intermittent and Fluctuating Occupational Noise: A Systematic Review of Studies of Human Permanent Threshold Shift, Ear Hear, 35, 86-96.

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Noise exposure immediately activates cochlear mitogen-activated protein kinase signaling.

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Do hearing protectors protect hearing?

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Acceptance of a semi-custom hearing protector by manufacturing workers.

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The End of NIOSH's Hearing Loss Prevention Program: Setback or Opportunity?

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Related Experiment Video

Updated: Jun 27, 2026

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode
03:49

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode

Published on: October 11, 2024

What do we know about hearing protector comfort?

Rickie R Davis1

  • 1Hearing Loss Prevention Team, Engineering and Physical Hazards Branch, Division of Applied Research and Technology, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, OH 45226, USA. rrd1@cdc.gov

Noise & Health
|December 5, 2008
PubMed
Summary
This summary is machine-generated.

Hearing protector comfort is crucial for long-term worker acceptance and effective use. This review examines comfort studies, drawing insights from textile research and detailing NIOSH

More Related Videos

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
09:44

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

Related Experiment Videos

Last Updated: Jun 27, 2026

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode
03:49

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode

Published on: October 11, 2024

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
09:44

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

Area of Science:

  • Occupational health
  • Ergonomics
  • Audiology

Background:

  • Worker acceptance and consistent use of hearing protection are vital for mitigating noise-induced hearing loss.
  • Comfort is a primary factor influencing the long-term wearability of hearing protection devices (HPDs).
  • Existing comfort research in textiles offers sophisticated models applicable to HPD development.

Purpose of the Study:

  • To review existing literature on the comfort of hearing protector devices.
  • To explore the significance of comfort in ensuring effective and prolonged use of HPDs.
  • To introduce advanced comfort research methodologies from related industries and recent NIOSH initiatives.

Main Methods:

  • Literature review of comfort studies related to hearing protectors.
  • Exploration of comfort models and research from the textile and clothing industries.
  • Overview of recent National Institute for Occupational Safety and Health (NIOSH) research efforts on HPD comfort.

Main Results:

  • Comfort is identified as a critical factor for sustained use of hearing protection.
  • Textile industry research provides advanced frameworks for understanding and measuring comfort.
  • NIOSH is actively investigating HPD comfort through field studies, including semi-custom earplugs.

Conclusions:

  • Prioritizing HPD comfort is essential for improving compliance and hearing conservation programs.
  • Interdisciplinary approaches, incorporating insights from textile science, can enhance HPD comfort research.
  • Further research, particularly field-based studies, is needed to optimize HPD comfort and effectiveness.