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Investigation into a Method for Predicting the Perceived Azimuth Position of a Virtual Image

The assessment of multichannel audio systems is often based on the ability of a particular loudspeaker configuration to generate the appropriate interaural cues for a listener to localise a stable virtual image between the loudspeakers. A common method used to judge the performance of a system is a subjective listening test where listeners are asked to indicate the direction of the virtual image. This work investigates an alternative method where a dummy head can be used to capture the cues and analysis of these signals allows a third octave band predication of where the image is most likely to be perceived. The MATLAB implementation is tested using two common multichannel systems and the results are compared with subjective results.

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