Evaluating out-of-head localization of a dry source from the front reproduced with cue-preserving headphones
* Presenting author
Sources from the frontal direction are still particularly challenging in binaural reproduction, as there are virtually no interaural time- and level differences. The perceived image of a binaural reproduction typically suffers from a vertical mislocalization and in-head localization. In the literature, different reasons for this problem can be found: the lack of individual spectral pinna-cues as well as missing room information. Even for a frontal position, a real sound source in an anechoic environment is typically localized clearly outside of the head. However, without any room information there are virtually no distance cues and the distance is not adequately perceived. Room information significantly supports distance perception and consequently externalization, however, it cannot provoke out-of-head localization by itself. Within this work, we investigate dry reproduction of frontal sources by a new headphone system. This new headphone contains additional tiny loudspeakers, which create similar individual spectral pinna-cues as a source from the frontal position. This is supported by dummy head measurements. A listening experiment is conducted in which the new headphone system is compared to existing approaches in terms of out-of-head localization, vertical localization and coloration. A loudspeaker in an anechoic room acts as reference stimulus.