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Lead-Signal Localization Accuracy for Inter-Channel Time Difference in Higher and Lower Vertical, Side, and Diagonal Loudspeaker Configurations

The effects of inter-channel time difference (ICTD) on a sound source’s perceived location are well understood for horizontal loudspeaker configurations. This experiment tested the effect of novel loudspeaker configurations on a listener’s ability to localize the leading signal in ICTD scenarios. The experiment was designed to be a comparison to standard horizontal precedence-effect experiments but with non-traditional loudspeaker arrangements. Examples of such arrangements include vertical, elevated, and lowered configurations. Data will be analyzed using sign and ANOVA tests with listeners’ responses being visualized graphically. Outcomes are expected to follow a predicted precedence-based suppression model assuming localization will be concentrated at the leading loudspeaker.

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