New off-line method for detecting spontaneous otoacoustic emissions in human subjects

Spontaneous otoacoustic emissions in an active nonlinear cochlear model in the time domain

“…The histogram of the relative frequency difference of neighboring SOAEs displays a clear maximum corresponding to one semitone. This striking statistical feature of the relative differences between adjacent SOAE frequencies is also present in the experimental data [14]. The similarity of model and experimental distributions was achieved by varying four free parameters in our model: the standard deviation and correlation length of the irregularities in the bifurcation parameter and the coefficients of the viscous and elastic coupling.…”

“…In order to compare statistics from our model with experimental data, we simulated 152 cochleas corresponding to the number of ears in experiments in the study by Talmadge et al [14]. In the following, we compare the resulting statistics of SOAE frequencies from our model with experiments.…”

“…Spontaneous emissions as a consequence of the active amplification mechanism were conjectured by Gold already in the 1940s [7] and experimentally confirmed for the first time in the late 1970s [10]. A large experimental study of human SOAEs, conducted by Talmadge et al [14], revealed a number of interesting statistical features. For instance, although humans hear over a range of frequencies between 20 Hz and 20 kHz, SOAE frequencies lay in a more narrow range between 500 Hz and 8 kHz.…”

Insights into elevated distortion product otoacoustic emissions in sickle cell disease: Comparisons of hydroxyurea-treated and non-treated young children

“…Further, it is unlikely that they would have multiple SOAEs to the extent that larger DPOAE amplitudes would be seen at 10 f 2 frequencies. When multiple SOAEs are evident there are typically on average four SOAEs (Lonsbury-Martin et al, 1990;Talmadge et al, 1993). We offer [PECAM]) and demonstrated that all were significantly elevated in mice with transgenic SCD.…”

Using Otoacoustic Emissions as a Biometric

“…SOAE are currently thought to be present in approximately 75% of the population [5], [6], [7]. A SOAE is a single pure tone at a fixed frequency up to 2kHz and a fixed amplitude.…”