headroom/crates/headroom-dsp/README.md

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.