Martínez Solís, J.R. et al. 2026. Deep Learning vs. Conventional DSP: A Systematic Review on Speech Intelligibility Enhancement for Hearing Impairments. International Journal of Online and Biomedical Engineering (iJOE). 22, 09 (Sep. 2026), pp. 205–220. DOI:https://doi.org/10.3991/ijoe.v22i09.61971.