Work

Efficiency improvements to an auditory-inspired synchrony capture filterbank

Year: 2026

Type: article

Abstract: This paper extends prior work on an auditory inspired adaptive synchrony capture filterbank (SCFB) architecture for acoustic frequency tracking. The earlier SCFB architecture used a weighted sum of frequency discriminator loop (FDL) and a phased locked loop (PLL) to track frequency components precisely. The key improvements in this paper are the introduction of adaptive FDL and PLL weights and the incorporation of a place theory-based mechanism to preferentially activate fewer filters, resulting in enhanced biomimicry and computational efficiency. The effectiveness of these improvements is demonstrated using synthetic time-varying signals, simultaneously highlighting the algorithm's robust denoising capability under challenging noise conditions.

Source: JASA Express Letters

DOI: 10.1121/10.0043594

Author: Vijay Kumar Peddinti

Institutions: Naval Undersea Warfare Center, NUWC Newport Division

Language: English

Topic: Advanced Adaptive Filtering Techniques

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funder: Naval Undersea Warfare Center

Award: G377839678