Related Experiment Video

Updated: Jul 11, 2026

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
06:01

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R

Published on: December 9, 2022

Loudness growth in individual listeners with hearing losses: a review

Jeremy Marozeau, Mary Florentine

    The Journal of the Acoustical Society of America
    |October 12, 2007
    PubMed

    More Related Videos

    An Automated System for Sound Localization Testing in Hearing-Impaired Listeners07:52

    An Automated System for Sound Localization Testing in Hearing-Impaired Listeners

    Published on: March 13, 2026

    Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention04:32

    Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

    Published on: December 20, 2024

    Related Concept Videos

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

    Perceiving Loudness, Pitch, and Location

    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.
    Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
    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...
    Sound Intensity00:58

    Sound Intensity

    The loudness of a sound source is related to how energetically the source is vibrating, consequently making the molecules of the propagation medium vibrate. To measure the loudness of a source, the physical quantity of interest is the intensity. This is defined as the energy emitted per unit of time per unit of area perpendicular to the sound wave's propagation direction. Since the total energy is greater if the source vibrates for a longer duration and over a larger area, dividing the emitted...