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crates/headroom-dsp/README.md

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+# headroom-dsp
+
+DSP kernels for Headroom. Pure Rust, no dependencies.
+
+- `Limiter` — feed-forward true-peak brickwall with configurable
+  oversampling (1/2/4/8×), lookahead, hold, and release.
+- `Compressor` — log-domain feed-forward with peak or RMS detector,
+  soft knee, attack/release, and optional auto-makeup.
+- `AttackRelease` — exponential envelope follower (peak / inverse-gain
+  modes).
+- `DelayLine`, `SlidingMaxBuffer`, `PolyphaseUpsampler`,
+  `PolyphaseDownsampler` — supporting building blocks.
+
+All processors are allocation-free in their `process_*` methods.
+Construction allocates; do not construct in the audio thread.
+
+## License
+
+MPL-2.0.