Comparison of the magnitudes of nSFOAE responses to a long-duration (500-ms) tone or short-duration (10-ms) tone bursts presented with differing time delays following onset of the wideband noise. The tone was 4.0 kHz at 60 dB SPL, and the noise was 0.1 – 6.0 kHz wide, 25 dB spectrum level, and 400 ms in duration. Results are shown only for subject NH, but they are representative. For the 500-ms tone, points are plotted for 5-ms steps of the analysis window. Some of the fluctuations in the nSFOAE response to the long-duration tone are attributable to the envelope fluctuations in the specific noise sample used (see Walsh et al., 2010, Figs. 2 and 3).