(Left) Group mean target-to-masker ratios (; expressed in decibels and computed relative to the level of individual maskers) at masked threshold as a function of the horizontal separation of two masker talkers for the BARE (filled circles) and PLEX (open circles) room conditions. The BARE room is a large IAC booth with reverberation time. The addition of Plexiglas® panels increases the reverberation time by a factor of in the PLEX room. The error bars are standard error of the mean. (Right) Average spatial release from masking (dB), for each listener, the difference in at threshold between colocated and separated conditions, at three masker separations.
Individual results plotted for the same conditions as shown in Fig. 1. Error bars are standard error of the mean. The lines are best-fitting filter functions (see the text and Table I).
(Left) Mean at threshold at 0° and in both rooms for the monaural condition (“Mon,” where one ear was occluded with an earplug and muff) and for the condition where participants listened binaurally but the speech maskers were time-reversed (“Rev”). Error bars represent standard error of the mean. The group mean ’s from Fig. 1 (binaural listening, forward speech maskers) are replotted for comparison (BARE: solid line, PLEX: dashed line). (Right) Mean spatial release from masking (dB), calculated on an individual listener basis and then averaged across listeners, for the conditions plotted in the left-hand panel.
Filter characteristics from best-fitting roex filter functions computed on masked thresholds from individual listener data displayed in Fig. 2.
Article metrics loading...
Full text loading...