Crate reflow_dsp 

Pure-Rust DSP primitives for Reflow audio/signal processing actors.

This crate is Wasm-safe — no system dependencies, no threads, no filesystem. All math is f32 for samples, f64 for coefficient precision.

Features

• simd — Enables hand-tuned SIMD paths:
  • aarch64: NEON for sample conversion, window apply, stereo interleave
  • x86_64: SSE2 for sample conversion, window apply

Modules

• biquad — Second-order IIR filters (LPF, HPF, BPF, notch, EQ, shelves)
• envelope — Envelope detection and dynamics processing (compressor, gate)
• db — Decibel ↔ linear conversion
• sample — Sample format conversion (i16/i32/f32) and interleaving
• window — Window functions (Hann, Hamming, Blackman, etc.)
• ring_buffer — Fixed-capacity ring buffer for delay lines and windowed processing
• fft — STFT processor with overlap-add (wraps rustfft/realfft)

Re-exports

pub use realfft;

pub use rustfft;

Modules

biquad

Biquad (second-order IIR) filter.

db

Decibel ↔ linear conversion utilities.

envelope

Envelope detector / follower.

fft

FFT / IFFT wrapper over realfft for real-valued audio signals.

ring_buffer

Fixed-size ring buffer for overlap-add, delay lines, and windowed processing.

sample

Sample format conversion and interleaving utilities.

window

Window functions for spectral analysis.