Spatial

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Spatial binaural hearing

• Lecture 8

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Terminology
Localization to judge distance or direction of
a sound source Laterialization apparent
localization of sound source inside the head
(e.g. headphones or tinnitus) Monaural present
to one ear Binaural present to both ears Diotic
same sound AU Dichotic different sound to
each ear
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Minimum audible angle (MAA) is the smallest
change in sound location that can be detected
ITD (lt1.5 kHz). We can detect ITDs 10
microsec ILD (gt1.8 kHz). We can detect ILDs 1
dB
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Cone of confusion (requires either head movement
or HRTFs to resolve)
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HRTFs
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Binaural masking level difference