Journal of the AES
2015 October - Volume 63 Number
10
The Effect of Interchannel Time Difference on Localization in Vertical
Stereophony
Authors:Wallis, Rory; Lee, Hyunkook
Affiliation:Applied Psychoacoustics Lab, University of Huddersfield,
Huddersfield, United Kingdom
See attachment. The article is Open Access.
When listeners localize in the median plane (vertical), binaural cues
are absent because the sound in the two ears is the same; median plane
localization depends solely on spectral cues. In order to analyze the
localization of band-limited stimuli in vertical stereophony, listening
tests were conducted using seven octave bands of pink noise centered at
frequencies from 125 to 8000 Hz as well as broadband pink noise.
Experimental results showed that localization is generally governed by
the so-called ³pitch-height² effect, with the high-frequency stimuli
generally being localized significantly higher than the low-frequency
stimuli for all conditions. The relationship between pitch and height
was found to be nonlinear. As frequency increased, subjective judgments
appeared to become more erratic because of interchannel time
differences.
Best regards,
Arthur Sauer
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