PSYCH 2E03 Lecture Notes - Interaural Time Difference, Sound Pressure, Sound Localization
13 Jun 2013
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Document Summary
Directly in front of them most accurately to the sides and behind their heads least accurately location cues are not contained in the receptor cells like on the retina in vision; thus, location for sounds must be calculated. Auditory space surrounds an observer and exists where there is sound coordinates: Azimuth coordinates position left to right. Elevation coordinates position up and down. Cues for localization of sounds (binaural cues) interaural time difference (itd): especially useful for sounds arising from the horizontal plane interaural intensity or level difference (ild): particularly helpful for high frequency sounds because they produce acoustic shadows. Binaraul cues location cues based on the comparison of the signals received by the left and right ears interaural time difference (itd) difference between the times sounds reach the two ears. When distance to each ear is the same, there are no differences in time. When the source is to the side of the observer, the times will differ.
