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. 2012 Dec 17;133(1):EL33–EL39. doi: 10.1121/1.4771978

Figure 1.

Figure 1

(Color online) Speech intelligibility results from anechoic (R0) and reverberant room (R1) listening environments at −8 dB and −12 dB SNR. Results from three types of analyses are shown. (a) Mean (n = 60) transformed speech intelligibility for blocked (filled bars: “B”) and unblocked (unfilled bars: “U”) conditions in R0 (upper panel) and R1 (lower panel) listening environments as a function of SNR. Error bars show 95% confidence intervals for each mean. (b) Scatter plot of speech intelligibility during blocked and unblocked listening conditions for R0 and R1environments. Each point indicates data from one listener at a given SNR. For R1, the majority of listeners demonstrate improved intelligibility when consistent room exposure is provided (blocked condition) relative to when room varies from trial to trial (unblocked condition). (c) Mean (n = 60) transformed speech intelligibility as a function of exposure time, measured in six-sentence epochs. Data are shown for blocked (B) and unblocked (U) conditions at −8 dB and −12 dB SNRs in R0 and R1. Error bars show 95% confidence intervals for each mean.