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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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The Cochlea01:13

The Cochlea

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The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
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The Auditory Ossicles01:11

The Auditory Ossicles

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The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
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Anatomy of the Ear01:16

Anatomy of the Ear

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Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
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Perception of Sound Waves01:01

Perception of Sound Waves

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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...
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Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

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The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
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Related Experiment Video

Updated: Mar 21, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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General Framework of Hearing Aid Fitting Management.

Soo Hee Oh1, Junghak Lee2

  • 1Audiology Institute, Hallym University of Graduate Studies, Seoul, Korea.

Journal of Audiology & Otology
|May 5, 2016
PubMed
Summary

This study proposes a standardized framework for hearing aid fitting management. Implementing this framework aims to improve hearing aid outcomes, user satisfaction, and cost-effectiveness for hearing impaired individuals.

Keywords:
Hearing aid fitting managementHearing aidsStandardization

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Area of Science:

  • Audiology
  • Hearing Healthcare
  • Medical Device Management

Background:

  • Hearing aids are a primary treatment for hearing impairment.
  • Current hearing aid fitting protocols lack systematic explication and standardization.
  • Varied guidelines lead to inconsistent care, variable outcomes, and user dissatisfaction.

Purpose of the Study:

  • To propose a general framework for standardized hearing aid fitting management.
  • To integrate pre- and post-fitting stages with the core fitting process.
  • To eliminate diverging interpretations and non-uniform practices in hearing aid care.

Main Methods:

  • Systematic review of existing hearing aid fitting protocols.
  • Development of a comprehensive management framework.
  • Analysis of pre-fitting assessment and post-fitting follow-up procedures.

Main Results:

  • A proposed standardized framework for hearing aid fitting management.
  • Identification of key components for assessment, fitting, and follow-up.
  • Elimination of ambiguity in current hearing aid fitting practices.

Conclusions:

  • Standardized hearing aid fitting management improves care quality.
  • The proposed framework enhances user satisfaction and hearing aid effectiveness.
  • Adoption of the framework is expected to increase cost-effectiveness for stakeholders.