Samenvatting
The normalized cross-correlation function between the amplitude and frequency fluctuations of 11 spontaneous otoacoustic emissions was measured. A significant correlation was found in seven subjects. The correlation coefficient ranged from -0.37 to +0.65 across subjects. In four subjects, the amplitude fluctuation lagged the frequency fluctuation. The time lag was between 1.6 and 5.5 ms. The results were interpreted using a noise-perturbed limit-cycle oscillator with nonlinear (Duffing) stiffness as a model for a spontaneous emission. The data show that the relative increase of the nonlinear stiffness in this model was between -0.010 and +0.015. This indicates that an even-order nonlinear stiffness plays a minor role in the emission generator.
| Originele taal-2 | English |
|---|---|
| Pagina's (van-tot) | 163-169 |
| Aantal pagina's | 7 |
| Tijdschrift | Journal of the Acoustical Society of America |
| Volume | 96 |
| Nummer van het tijdschrift | 1 |
| Status | Published - jul.-1994 |