spatial hearing

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Prism adaptation of spatial hearing in barn owls

Under construction

 

Videos kindly provided by Dr William DeBello from the Center for Neuroscience and Department of Neurobiology, Physiology, and Behavior, University of California, Davis (http://neuroscience.ucdavis.edu/user/18)

Pena, J. L., & DeBello, W. M. (2010). Auditory processing, plasticity, and learning in the barn owl. Institute for Laboratory Animal Research Journal 51, 338-352

Time intensity trading

Move the mouse cursor over the grid below to hear a harmonics complex tone with ILDs and ITDs as indicated.

You should listen to these sounds over headphones, and this demo may not work for you if you have a significant hearing loss in one ear, or if the sound card on your computer is of poor quality and does not separate the two stereo channels well.

Binaural Cues and Cue Trading - Audio Demos

This page has little animations illustrating the two major binarual cues for sound source direction: Interaural Time Differences (ITDs) and Interaural Level Differences (ILDs).

 

Acoustic cues for sound location

This figure shows acoustic cues to sound source direction. It is a color version of Fig. 5-2 of "Auditory Neuroscience", and is based on acoustic recordings from my own ears carried out by Prof Doris Kistler at the University of Wisconsin at Madison.
 

 

spatial cues

 

Widely Separated Ears


Sound localization relies heavily on interaural disparities (i.e. differences in the signals received in the left and right ears), and these differences are larger, making sound localization easier, if the two ears further apart.

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