The onsite (left panel) and online (right panel) DIN test scores (dB SNR) for sound presentation (shown on the left and right sides of panels for diotic and antiphasic, respectively), starting SNR (low, high), and mixing method (fixed-speech, fixed-noise, and fixed-level). The boxplots show the lower and upper quartiles and the lines show the median scores of participants (N=22). The dots represent outliers, and the whiskers indicate the lowest and highest data points within plus or minus 1.5 times the interquartile range.