Lissajous Labs
29 September 2026
So You Want to Make an EQ
How a parametric EQ band works, derived from scratch: the trapezoidal rule, prewarping, zero-delay feedback and the state-variable filter behind Chronos.
Free beta · v0.1.0
Chronos
A nonlinear stereo delay. Pick a clean Digital line or an MN3005 or MN3008 bucket-brigade emulation, then push the feedback loop from tight slapback into saturated, self-oscillating trails.
macOS · Windows · Linux / AU · VST3 · Standalone
About the lab
Lissajous Labs makes audio plugins for music production, and writes up the DSP behind them on the blog.
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