“…Benefit from the multi-channel parallel processing feature, the organisms could process and perceive complex audio signals with high efficiency ( Luo, 2021 ). Inspired by the biological cochlea, artificial cochleas have been widely used in mobile devices ( Geronazzo et al, 2020 ; Zheng et al, 2021 ), smart homes ( Mondal and Barman, 2022 ; Priya et al, 2022 ), biomedical healthcare system ( Islam et al, 2022 ; Wang et al, 2022 ), and other voice interaction interfaces to perform assigned tasks ( Eichenauer et al, 2021 ; Ghosh et al, 2022 ). However, the artificial cochlear system based on complementary metal-oxide-semiconductor (CMOS) technology, with the advent of the post-Moore era, presents challenges on system complexity, energy consumption, scalability and configurability ( Xu et al, 2018 ; Wang et al, 2021 ; Ding et al, 2022 ).…”