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Stimuli and evoked frequency-following responses (FFRs). Three missing-fundamental complex tones at the pitches of musical tones C4 (262 Hz), E4 (330 Hz), and G4 (393 Hz) were presented to the left ear, the right ear, and both ears for each subject (3 × 3 design). Here displayed are the temporal waveforms (left) and the spectra (right) of the stimuli and the FFRs at typical recording sites. Note that the FFR spectra are based on the steady-state part (20–180 ms).
