Signals and Telecommunication Journal Violeta Stojanovic, Zoran Milivojevic, Zoran Velièkovic 10 1 2021 https://doi.org/10.6025/stj/2021/10/1/7-14 https://www.dline.info/stj/fulltext/v10n1/stjv10n1_2.pdf A broader perspective involving medicine and technology is treated in this paper. For solving biological issues, we evolve a fluid model by using both power engineering and signal processing. This approach brings real life solution to the issues in a wider sense. We presented a biological description of inner ear, simulation model for cochlea, pressure contours on the basilar membrane. This research shows how the interdisciplinary approach can solve real life issues.