Abstract
This paper presents a reconfigurable digital implementation of an event-based binaural cochlear system on a Field Programmable Gate Array (FPGA). It consists of a pair of the Cascade of Asymmetric Resonators with Fast Acting Compression (CAR-FAC) cochlea models and leaky integrate-and-fire (LIF) neurons. Additionally, we propose an event-driven SpectroTemporal Receptive Field (STRF) Feature Extraction using Adaptive Selection Thresholds (FEAST). It is tested on the TIDIGTIS benchmark and compared with current event-based auditory signal processing approaches and neural networks.
Original language | English |
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Article number | 1125210 |
Number of pages | 12 |
Journal | Frontiers in Neuroscience |
Volume | 17 |
DOIs | |
Publication status | Published - 2023 |
Bibliographical note
Publisher Copyright:Copyright © 2023 Xu, Perera, Bethi, Afshar and van Schaik.
Open Access - Access Right Statement
© 2023 Xu, Perera, Bethi, Afshar and van Schaik. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) (https://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.Keywords
- neuromorphic engineering
- STRF
- electronic cochlea
- LIF
- FEAST
- CAR-FAC
- event-based feature extraction