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Model predictions showing the effects of NR on the fidelity of transmission for A AM information (input: AM stimuli), B on-frequency AM information at 1 kHz, converted from FM information (input: FM stimuli), C off-frequency AM information at 850 Hz, converted from FM information (input: FM stimuli), and D FM information (input: FM stimuli). The solid lines show the predictions without noise reduction, and the dashed lines show the predictions with noise reduction.
