PMID- 29692700 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231112 IS - 1662-4548 (Print) IS - 1662-453X (Electronic) IS - 1662-453X (Linking) VI - 12 DP - 2018 TI - A FPGA Implementation of the CAR-FAC Cochlear Model. PG - 198 LID - 10.3389/fnins.2018.00198 [doi] LID - 198 AB - This paper presents a digital implementation of the Cascade of Asymmetric Resonators with Fast-Acting Compression (CAR-FAC) cochlear model. The CAR part simulates the basilar membrane's (BM) response to sound. The FAC part models the outer hair cell (OHC), the inner hair cell (IHC), and the medial olivocochlear efferent system functions. The FAC feeds back to the CAR by moving the poles and zeros of the CAR resonators automatically. We have implemented a 70-section, 44.1 kHz sampling rate CAR-FAC system on an Altera Cyclone V Field Programmable Gate Array (FPGA) with 18% ALM utilization by using time-multiplexing and pipeline parallelizing techniques and present measurement results here. The fully digital reconfigurable CAR-FAC system is stable, scalable, easy to use, and provides an excellent input stage to more complex machine hearing tasks such as sound localization, sound segregation, speech recognition, and so on. FAU - Xu, Ying AU - Xu Y AD - MARCS Institute, Western Sydney University, Sydney, NSW, Australia. FAU - Thakur, Chetan S AU - Thakur CS AD - MARCS Institute, Western Sydney University, Sydney, NSW, Australia. FAU - Singh, Ram K AU - Singh RK AD - MARCS Institute, Western Sydney University, Sydney, NSW, Australia. FAU - Hamilton, Tara Julia AU - Hamilton TJ AD - MARCS Institute, Western Sydney University, Sydney, NSW, Australia. FAU - Wang, Runchun M AU - Wang RM AD - MARCS Institute, Western Sydney University, Sydney, NSW, Australia. FAU - van Schaik, Andre AU - van Schaik A AD - MARCS Institute, Western Sydney University, Sydney, NSW, Australia. LA - eng PT - Journal Article DEP - 20180410 PL - Switzerland TA - Front Neurosci JT - Frontiers in neuroscience JID - 101478481 PMC - PMC5902704 OTO - NOTNLM OT - FPGAs OT - automatic gain control OT - basilar membrane OT - electronic cochlea OT - inner hair cell OT - medial olivocochlear efferent OT - neuromorphic engineering OT - outer hair cell EDAT- 2018/04/26 06:00 MHDA- 2018/04/26 06:01 PMCR- 2018/01/01 CRDT- 2018/04/26 06:00 PHST- 2017/10/31 00:00 [received] PHST- 2018/03/12 00:00 [accepted] PHST- 2018/04/26 06:00 [entrez] PHST- 2018/04/26 06:00 [pubmed] PHST- 2018/04/26 06:01 [medline] PHST- 2018/01/01 00:00 [pmc-release] AID - 10.3389/fnins.2018.00198 [doi] PST - epublish SO - Front Neurosci. 2018 Apr 10;12:198. doi: 10.3389/fnins.2018.00198. eCollection 2018.