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miero Hifi inventar
Založený: 08 september 2010 Príspevky: 11525 Bydlisko: Praha
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Zaslal: So júl 23, 2016 06:32:35 Predmet: Interaural Time Differences (Interaural Phase Sensitivity) |
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citácia: | Human listeners, and other animals too, use interaural time differences (ITD) to localize sounds. |
citácia: | The most detailed exploration of the frequency dependence of ITD sensitivity was recently made by Brughera et al. (2013), paying particular attention to the high-frequency limit. The procedures in that work were approved by the Michigan State University institutional review board, and informed consent was obtained from all subjects. That exploration used a two-interval forced-choice task in which a tone led in one ear by the ITD on the first interval and led in the other ear by the ITD on the second. The difference between the two intervals, ΔITD (twice the ITD on each interval) is plotted in Figure Figure6.6. The thresholds in Figure Figure66 show a broad minimum between 700 and 1000 Hz indicating the frequency region of greatest sensitivity. They show a sharp rise above 1200 Hz. Brughera et al. found that some listeners were sensitive to the ITD at 1400 Hz, but all listeners found it impossible to detect the ITD at 1450 Hz, in good agreement with Nordmark |
Zdroj: Anatomical limits on interaural time differences: an ecological perspective
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3937989/ |
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