The value of ΔF corresponding to threshold, plotted as a function of SL (level relative to the absolute threshold). Each symbol shows the results for one subject. Error bars show ± one standard error. The positions of the data points on the x-axis are slightly staggered to reduce overlap of symbols and error bars.
The upper panel shows excitation patterns for the H tone (solid line) and I tone (dashed line) for an SL of 30 dB and a frequency shift, ΔF, of 102 Hz. The patterns were calculated as described by Glasberg and Moore (1990), except that both the lower and upper sides of the filters were sharpened by a factor of two. The lower panel shows the difference between the excitation patterns for the H and I tones.
Differences between excitation patterns for the H and I tones for a fixed value of ΔF. Each panel shows differences for one SL.
Differences between excitation patterns for the H and I tones for values of ΔF corresponding to the predicted threshold for each SL. Each panel shows differences for one SL.
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