Technology & Engineering What are the 4 types of filtering? February 5, 2026 by Tanp | Leave a Comment Filtering is a critical process used in various fields to refine data, improve information quality, or enhance system performance. The four types of filtering commonly recognized are low-pass, high-pass, band-pass, and band-stop filters. Each type serves a unique purpose and is utilized across different applications, from audio processing to data analysis. What is Low-Pass Filtering? […] Read more ยป