Sound localization is crucial for our spatial awareness. , like interaural time and level differences, help us pinpoint sound sources. The explains how our brains use these cues across different frequency ranges for accurate localization.
from our outer ear shape add another layer to sound localization. These unique patterns, captured by Head-Related Transfer Functions, help resolve ambiguities like front-back confusion. However, localization has limitations, including minimum audible angles and distance perception challenges.
Binaural Cues and Sound Localization
Binaural cues for localization
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Auditory Pathways to the Brain – Introduction to Sensation and Perception View original
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bagustris@/home: Interaural Time Difference (ITD) View original
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Frontiers | Resolution of interaural time differences in the avian sound localization circuit—a ... View original
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Auditory Pathways to the Brain – Introduction to Sensation and Perception View original
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bagustris@/home: Interaural Time Difference (ITD) View original
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Top images from around the web for Binaural cues for localization
Auditory Pathways to the Brain – Introduction to Sensation and Perception View original
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bagustris@/home: Interaural Time Difference (ITD) View original
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Frontiers | Resolution of interaural time differences in the avian sound localization circuit—a ... View original
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Auditory Pathways to the Brain – Introduction to Sensation and Perception View original
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bagustris@/home: Interaural Time Difference (ITD) View original
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(ITD)
Time difference of sound arrival between ears enables localization
Effective for low-frequency sounds (below 1500 Hz) due to wavelength size
Calculated as ITD=crθ, r = head radius, θ = azimuth angle, c = speed of sound
(ILD)
Intensity difference between ears aids in sound source identification
Effective for high-frequency sounds (above 1500 Hz) due to head shadow effect
Increases with frequency and source angle
Duplex theory
Combines ITD and ILD for accurate localization across frequency ranges
Low frequencies rely on ITD, high frequencies on ILD