Contribution
Nonlinear Outer Hair Cell Model: Temporal Modulation
* Presenting author
Abstract:
In the last decades, active cochlear models have gained more popularity. These models show better results in modeling the basilar membrane response than passive models. Different publications state that the outer hair cells can oscillate at defined frequencies. They enhance the oscillation of the basilar membrane and are influenced by the efferent nerve system.A system with high temporal resolution is needed to model the outer hair cells. The recently published Generalized Hopf oscillator by Farber and Bozovic (2024) delivers the most promising results. In our paper, two well-known psychoacoustics experiments are modeled: a Temporal Modulation and a Gap Detection test, both with Generalized Hopf and standard Hopf Oscillators. Because such models only cover a small part of the human hearing system, two simple detection methods were designed on top to explain the experimental results to human listeners.The Generalized Hopf Oscillator has a higher temporal resolution than both the reported human hearing system and the standard Hopf Oscillator, making it a sufficient outer hair cell model.