High Q Instability on SignalForge Engineering Noteshttps://blog.signal-forge.app/tags/high-q-instability/Recent content in High Q Instability on SignalForge Engineering NotesHugoen-usSun, 15 Feb 2026 00:00:00 +0000Why High-Q IIR Notch Filters Become Unstable in Real DSP Systems (And How to Fix It)https://blog.signal-forge.app/posts/high-q-iir-notch-filter-instability-and-fix/Sun, 15 Feb 2026 00:00:00 +0000https://blog.signal-forge.app/posts/high-q-iir-notch-filter-instability-and-fix/High-Q IIR notch filters often become numerically unstable in real-world DSP systems. This article explains why instability happens and how deterministic coefficient synthesis prevents it.