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Figure 1

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In the upper graph, the amplitude of the ISTS of the wave file is plotted w.r.t. full scale. In the middle and lower graph, the level of the noise signal separated with the phase inversion method at the output of the hearing aid is plotted exemplary for HA1 and HA2 against time. For this visualization, the moving RMS with a window size of 20 ms is computed. Moreover, the level of the complete time window from 30 s to 60 s is subtracted. In all three graphs, speech pauses are depicted with a grey background color.

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