Low‑pass filter
A complete one‑pager: RC calculator, cutoff, tau, interactive Bode magnitude plot, and a Web Audio demo to listen to the effect.
I focus on practical, well‑explained tools: calculators, visual guides, and Web Audio demos. Everything runs client‑side, works on any device, and is easy to learn from and reuse.
Explore fundamental filters with theory, calculators, Bode plots, and live audio.
A complete one‑pager: RC calculator, cutoff, tau, interactive Bode magnitude plot, and a Web Audio demo to listen to the effect.
Companion to the low‑pass: RC math, visualizations, and listening tests. Page reserved and linked; content in progress.
I will publish circuit schematics and build notes here. From analog RC to active topologies and DSP counterparts. Stay tuned.
Curated schematics with parameter notes, tolerance tips, and layout considerations for noise and impedance.
Second‑order designs with target Q values (Butterworth, Bessel, Chebyshev), unity‑gain and gain‑staging variants.
Biquad mappings, bilinear transform notes, and coefficient calculators aligned with Web Audio parameters.
I publish everything under GPL v3. You can study, share, and modify the code. Each app is self‑contained (HTML + CSS + JS), documented in plain language, and designed for clarity, performance, and accessibility.