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Related Concept Videos

Auditory Perception01:17

Auditory Perception

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

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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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Perception of Sound Waves01:01

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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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Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind
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Evaluating Spatial Hearing Using a Dual-Task Approach in a Virtual-Acoustics Environment.

Marina Salorio-Corbetto1,2,3, Ben Williges1, Wiebke Lamping1

  • 1SOUND Laboratory, Cambridge Hearing Group, Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom.

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|March 30, 2022
PubMed
Summary
This summary is machine-generated.

A new Virtual Acoustics (VA) Spatial Speech in Noise (SSiN) test, the SSiN-VA, effectively assesses spatial hearing. This affordable, at-home tool monitors speech discrimination and localization in noise for hearing device users.

Keywords:
bilateral cochlear implantsbinaural performancedual taskfunctional testingremote testingspatial hearingspeech in noise

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Area of Science:

  • Audiology
  • Acoustics
  • Human-Computer Interaction

Background:

  • Spatial hearing is crucial for communication in noisy environments.
  • Current clinical assessments for spatial hearing can be costly and inaccessible.
  • Remote and at-home healthcare solutions are increasingly relevant for patient monitoring.

Purpose of the Study:

  • To evaluate a Virtual Acoustics (VA) version of the Spatial Speech in Noise (SSiN) test, termed SSiN-VA.
  • To determine if SSiN-VA can replicate findings from traditional loudspeaker-based spatial hearing tests.
  • To assess the feasibility of using SSiN-VA for regular, remote monitoring of spatial hearing performance.

Main Methods:

  • The SSiN-VA was developed using the 3D Tune-In Toolkit, simulating seven loudspeaker locations via headphone playback.
  • Twelve normal-hearing participants completed the SSiN-VA, assessing speech discrimination and relative localization.
  • The study investigated the effects of signal-to-noise ratio (SNR) and target location shifts on performance.

Main Results:

  • SSiN-VA demonstrated similar performance patterns to loudspeaker setups for both relative localization and speech discrimination.
  • Relative localization accuracy improved significantly with higher SNRs.
  • Speech discrimination showed an interaction between SNR and word phonetic contrast.

Conclusions:

  • The SSiN-VA shows promise as a cost-effective and accessible tool for assessing spatial hearing in noise.
  • Virtual audio technology can be reliably used for speech discrimination and relative localization testing.
  • This approach supports remote patient monitoring and management of hearing device users.