Loss of Subjective Localization Cues in Virtual Acoustic Opening

The reproduced sound event quality is very important in a WFS configuration that is used for an acoustic opening. One way of checking the subjective quality perceived by a listener is the ITU R. BS.1387 "Method for objective measurements of perceived audio quality", but this method does not provide information about the listener ability to localize the sound. A Matlab application has been implemented (SEL, Sound Event Localization) simulating an acoustic opening configuration. The number of microphones and loudspeakers in the arrays is selectable, just as the sound source position, the gap between array transducers and the listener position. This simulation has been verified against a real configuration of acoustic opening. Moreover, the loss of localization cues has been analyzed with different multichannel codings.