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. 2006 Jun;10(2):83–93. doi: 10.1177/1084713806289553

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Figure 8. — Mean 30-second root mean square (rms) values showing the degree of gain reduction for the Hearing-in-Noise Test (HINT) material (65-dB sound pressure level input) presented with the HINT noise for 4 different signal-to-noise ratios. Noise reduction was set to maximum, and the hearing aids were programmed using the National Acoustics Laboratory–nonlinear version 1 (NAL-NL1) algorithm for the mean hearing loss of the study participants. The 0-dB reference is DNR off. SNR = signal-to-noise ratio.