Test results normally indicate very large variability in perception of lateral virtual sound sources with a 5-channel speaker setup. Three recent studies indicate that up to a third of stimuli from a side speaker pair were perceived surprisingly accurately as virtual sound sources. In other cases sound sources were perceived as coming from only one speaker or from it’s vicinity. Therefore, we specified prototypical localisation behaviours. We examined effects on localisation by reproduction rooms, exact position of test persons in relation to speakers, test persons’ head movements and trading between time delay and level differences.
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