Investigating Listeners' Localization of Virtually Elevated Sound Sources
The object of this study was to experimentally observe and compare the perceived directions of elevated sound sources in two conditions: one reproduced from a real loudspeaker and another from a virtually manipulated loudspeaker using a newly proposed transaural crosstalk cancellation. A total of twelve listeners evaluated perceived directions of various sound sources through a direct estimation of azimuth and elevation angle. The results showed that virtually elevated sound sources were generally perceived as lower compared to physically elevated ones, possibly due to the discrepancy between the Head Related Transfer Function (HRTF) used and the listeners' HRTFs. Subsequent analysis showed that localization of both conditions was influenced by the type and the bandwidth of the stimuli, yet not by the condition whether or not a listener had a reference position.
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