<p>Observed and estimated masked thresholds (in dB SPL) were compared for each masker type, for all target frequencies and spatial conditions. The first four columns show the estimated and the observed masked thresholds as mean absolute values (in dB SPL) ± standard deviation. The last two columns show the estimated and the observed amounts of spatial release from masking (SRM) in dB that were calculated by subtracting the thresholds of the spatially separated conditions from the thresholds of the co-located conditions. Mean values for the observed thresholds were calculated from five individuals. Mean values for the estimated thresholds were calculated from 51 subjects of the LISTEN HRTF database <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0026124#pone.0026124-Warusfel1" target="_blank">[13]</a>. Details about the estimation of the thresholds can be found in the section <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0026124#s2" target="_blank">Materials and methods</a>: Model description.</p
