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Related Concept Videos

Perception of Sound Waves01:01

Perception of Sound Waves

4.4K
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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Sound Waves: Resonance01:14

Sound Waves: Resonance

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Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
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Sound as Pressure Waves01:17

Sound as Pressure Waves

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Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...
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Sound Intensity00:58

Sound Intensity

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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...
4.0K
Sound Waves01:01

Sound Waves

8.4K
Sound waves can be thought of as fluctuations in the pressure of a medium through which they propagate. Since the pressure also makes the medium's particles vibrate along its direction of motion, the waves can be modeled as the displacement of the medium's particles from their mean position.
Sound waves are longitudinal in most fluids because fluids cannot sustain any lateral pressure. In solids, however, shear forces help in propagating the disturbance in the lateral direction as well....
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Sound Intensity Level00:53

Sound Intensity Level

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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...
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Introduction to the Special Issue on Iconicity and Sound Symbolism.

Aleksandra Ćwiek1, Jody Kreiman2, Susanne Fuchs1

  • 1Leibniz-Centre General Linguistics, Berlin, 10719, Germany.

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|May 19, 2025
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Summary
This summary is machine-generated.

This Special Issue highlights how iconicity and sound symbolism are crucial to language, viewing iconicity as a gradient property. Research explores its mechanisms, cross-linguistic patterns, and role in language acquisition.

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Area of Science:

  • Linguistics
  • Psycholinguistics
  • Cognitive Science

Background:

  • Iconicity and sound symbolism, once marginal, are now central to linguistic theory.
  • This Special Issue features ten papers examining iconicity as a gradient, not binary, property.
  • The research moves beyond phonemic analysis to explore continuous acoustic and articulatory parameters.

Discussion:

  • Investigates mechanisms of iconic associations, including acoustic and articulatory factors.
  • Explores cross-modal relationships, cross-linguistic variations, and socio-emotional aspects of iconicity.
  • Examines the developmental role of iconicity in language acquisition, challenging prior assumptions.

Key Insights:

  • Iconicity is a fundamental, gradient property of language, linking form and meaning.
  • Acoustic and articulatory parameters are key to understanding iconic relationships.
  • Iconicity bridges physical and conceptual realms, influenced by biological, cultural, and contextual factors.

Outlook:

  • Future research should continue exploring the nuanced dimensions of iconicity and sound symbolism.
  • Further investigation into the developmental trajectory of iconicity in language acquisition is warranted.
  • Understanding iconicity's role offers new perspectives on language evolution and cognition.