/en/tags/parameter-tuning/Recent content in Parameter Tuning on Mi&Bee BlogHugo -- gohugo.ioen蓝宝石的傻话Mon, 25 May 2026 10:00:00 +0800/en/posts/physical-world/anc-tuning-debugging/Mon, 25 May 2026 10:00:00 +0800/en/posts/physical-world/anc-tuning-debugging/<p>In engineering practice, the most time-consuming and experience-dependent part of an active noise control system is not algorithm selection, but parameter tuning and stability debugging. Filter order, step size, sampling rate — each parameter interacts with the others in ways that are not always obvious. This article draws from hands-on experience to cover the key parameter selection logic and common troubleshooting approaches in ANC tuning.</p> <h2 id="filter-order-selection">Filter Order Selection</h2> <p>The FIR filter order $N$ directly determines two core metrics: frequency resolution and computational complexity. Getting this choice wrong reveals itself early in debugging — poor noise reduction, slow convergence, or outright divergence.</p>