Hearing constitutes a fundamental sensory input directly linked to brain plasticity during the early years of life, and auditory stimulation provided in this critical period shapes the neurobiological basis of language, communication, and cognitive development. Hearing screening tests are essential clinical procedures that enable rapid, objective, and reliable assessment of auditory function across all age groups. By facilitating the early detection of hearing loss, these tests enhance the effectiveness of diagnostic and intervention processes. This continuum has advanced significantly through the contributions of biomedical engineering. Contemporary audiological screening systems operate through the integration of multidimensional components of biomedical engineering, including advanced sensor technologies, low-noise analog circuit designs, high-resolution analog-to-digital converters, digital signal processing algorithms, and embedded system architectures. This technological infrastructure provides a critical foundation that enhances both the repeatability and the clinical accuracy of the measurements.