CMOS-Based Memristor Emulator Circuit for Audio Signal Processing in Hearing Aid Applications

Hearing aids require efficient a nd a daptive audio signal processing to improve sound quality and intelligibility of speech for users. This paper presents the basic building block of an audio processing system using a CMOS-based memristor emulator circuit designed for hearing aid applications. The proposed emulator implemented using SCL 180 nm technology library replicates the behavior of a memristor. The simulation results demonstrate the effectiveness of the circuit in building spiking voltage generation similar to that of a biological neuron with minimal power consumption. In this work, the memristive integrate and firing n euron ( MIF) c ell i s d emonstrated i n 180 nm technology, 1.8 V supply voltage, operating frequency upto 100 MHz with a power consumption of less than 1 mW is demonstrated in Cadence Virtuoso tool. Including CMOS-based memristor emulators into hearing aids can lead to significant advancements in adaptive sound processing, ultimately improving the auditory experience for users.