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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...
4.4K
Sound Waves01:01

Sound Waves

8.0K
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....
8.0K
Auditory Perception01:17

Auditory Perception

288
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...
288
Sound Waves: Interference00:53

Sound Waves: Interference

3.7K
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...
3.7K
Sound Intensity Level00:53

Sound Intensity Level

4.1K
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...
4.1K
Sound Intensity00:58

Sound Intensity

4.0K
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

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Related Experiment Video

Updated: May 15, 2025

Multimodal Optical Microscopy Methods Reveal Polyp Tissue Morphology and Structure in Caribbean Reef Building Corals
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Visualization and quantification of coral reef soundscapes using CoralSoundExplorer software.

Lana Minier1, Jérémy Rouch2, Bamdad Sabbagh2

  • 1PSL Université Paris, EPHE-UPVD-CNRS, UAR3278 CRIOBE, Moorea, French Polynesia.

Plos Computational Biology
|April 10, 2025
PubMed
Summary

Coral reefs face threats, but new software CoralSoundExplorer helps monitor their soundscapes. This tool uses machine learning to quickly identify changes and disturbances in these vital marine ecosystems.

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Area of Science:

  • Marine Biology
  • Acoustic Ecology
  • Bioacoustics

Background:

  • Coral reefs are vital ecosystems facing significant threats from global change and human activities.
  • Changes in coral reef ecosystems impact their acoustic characteristics, making soundscape monitoring crucial.
  • Rapid measurement and identification of soundscape changes in coral reefs remain a challenge.

Purpose of the Study:

  • Introduce CoralSoundExplorer, an open-source software for studying and monitoring coral reef soundscapes.
  • Demonstrate the software's capability to identify disturbances affecting coral reefs.
  • Provide a user-friendly workflow for analyzing raw sound recordings to ecological results.

Main Methods:

  • Utilize machine learning approaches within CoralSoundExplorer to analyze soundscape data.
  • Eliminate the need for conventional acoustic indices by employing novel quantification methods.
  • Analyze sound recordings from three distinct coral reef sites in Bora-Bora (undisturbed, tourist, boat).

Main Results:

  • CoralSoundExplorer effectively visualizes the spatio-temporal distribution of sound recordings.
  • The software provides new quantification methods for characterizing soundscapes at various temporal scales.
  • Demonstrated ability to identify disturbances impacting coral reef soundscapes.

Conclusions:

  • CoralSoundExplorer is a powerful tool for the rapid assessment and monitoring of coral reef health through soundscape analysis.
  • The software facilitates the identification of anthropogenic impacts on marine soundscapes.
  • Open-source accessibility promotes wider adoption in coral reef research and conservation.