Crate oximedia_effects 

Professional audio effects suite for OxiMedia.

This crate provides production-quality implementations of professional audio effects used in music production, post-production, and broadcast applications.

Effect Categories

Reverb

• Freeverb - Algorithmic reverb based on Schroeder reverb architecture
• Plate Reverb - Simulation of mechanical plate reverb
• Convolution Reverb - Impulse response-based reverb for realistic spaces

Delay/Echo

• Delay - Simple delay with feedback
• Multi-tap Delay - Multiple delay taps with independent controls
• Ping-pong Delay - Stereo ping-pong delay effect

Modulation

• Chorus - Multi-voice chorus effect
• Flanger - Flanging with feedback
• Phaser - All-pass filter cascade phasing
• Tremolo - Amplitude modulation
• Vibrato - Frequency modulation
• Ring Modulator - Ring modulation effect

Distortion

• Overdrive - Soft clipping overdrive
• Fuzz - Hard clipping fuzz distortion
• Bit Crusher - Bit depth and sample rate reduction

Dynamics

• Gate - Noise gate with threshold and hysteresis
• Expander - Upward and downward expansion

Filters

• Biquad - Second-order IIR filters (low-pass, high-pass, band-pass, notch, shelving)
• State Variable Filter - Multi-mode state-variable filter
• Moog Ladder - Classic Moog ladder filter simulation

Pitch/Time

• Pitch Shifter - Time-domain and frequency-domain pitch shifting
• Time Stretch - Tempo change without pitch change
• Harmonizer - Pitch shifting with formant preservation

Vocoding/Correction

• Vocoder - Channel vocoder
• Auto-tune - Basic pitch correction

Architecture

All effects implement the AudioEffect trait, which provides a unified interface for real-time audio processing with support for both mono and stereo operation.

Effects are designed to be:

• Real-time capable - Low latency, no allocations in process loops
• Sample-accurate - Parameter changes are smoothed to avoid artifacts
• Efficient - Optimized for CPU efficiency
• Safe - No unsafe code, enforced by #![forbid(unsafe_code)]

Example

use oximedia_effects::{AudioEffect, reverb::Freeverb, ReverbConfig};

let config = ReverbConfig::default()
    .with_room_size(0.8)
    .with_damping(0.5)
    .with_wet(0.3);

let mut reverb = Freeverb::new(config, 48000.0);

// Process stereo audio
let mut left = vec![0.0; 1024];
let mut right = vec![0.0; 1024];
reverb.process_stereo(&mut left, &mut right);

Modules

analog_delay

Analog delay emulation with feedback saturation modeling.

auto_pan

Automatic panning effect for stereo audio.

barrel_lens

Barrel and pincushion lens distortion correction / simulation.

bass_enhancer

Psychoacoustic bass enhancer.

bitcrusher

Bitcrusher audio effect — bit-depth and sample-rate reduction with triangular dither.

blend

Blend mode effects for audio and visual processing.

chorus

Chorus and flanger audio effect.

chorus_flanger

Modulation effects: chorus and flanger.

color_grade

Color grading effects using CDL (Color Decision List) and film-look models.

composite

Porter-Duff compositing operators for video effects.

compressor

Dynamics compression effects.

compressor_look

Look-ahead compressor for transparent dynamic range control.

deesser

De-esser effect for sibilance reduction.

delay

Delay and echo effects.

delay_line

Multi-tap delay line effect with ping-pong and stereo modes.

distort

Distortion and warp effects operating on normalised UV coordinates [0.0, 1.0].

distortion

Distortion effects module.

ducking

Sidechain ducking effect for automated audio mixing.

dynamics

Dynamics processing effects.

eq

Parametric equalizer with biquad IIR filters.

filter

Filter effects module.

filter_bank

Multi-band filter bank for spectral shaping and analysis.

flanger

Flanger effect — short delay with LFO-modulated sweep and feedback.

fundsp_adapter

FunDSP interoperability adapter for AudioEffect implementations.

glitch

Glitch effects for audio processing.

harmonic_exciter

Harmonic exciter effect.

keying

Chroma and luma keying effects for compositing workflows.

lookahead_limiter

Lookahead limiter for broadcast loudness compliance.

lufs_meter

LUFS Loudness Metering — EBU R128 / ITU-R BS.1770-4.

luma_key

Luminance (luma) keying for video effects.

mix

Wet/dry mix wrapper for any AudioEffect.

modulation

Modulation effects module.

multiband_compressor

Multiband dynamics compressor.

parametric_eq

Parametric equaliser using cascaded biquad filters with f64 internal precision.

pitch

Pitch and time manipulation effects.

reverb

Reverb effects module.

reverb_hall

Hall-style algorithmic reverb using a network of comb and all-pass filters.

ring_mod

Ring modulation audio effect.

room_reverb

Room reverb simulation for OxiMedia effects.

saturation

Tube and tape saturation effect.

spatial_audio

Spatial audio rendering for OxiMedia effects.

stereo_upmix

Stereo-to-surround upmixer for 5.1 and 7.1 channel configurations.

stereo_widener

Stereo field widening and narrowing effect.

stereo_wider

Stereo widener using mid-side (M/S) processing.

tape_echo

Tape echo simulation effect.

tape_sat

Tape saturation effect with configurable drive and soft-clipping transfer function.

time_stretch

Time-stretching algorithms for OxiMedia effects.

transient_shaper

Transient shaping effect for controlling attack and sustain.

tremolo

Tremolo and vibrato effects with flexible LFO waveform support.

utils

Utility modules for audio effects.

vibrato

Vibrato effect — LFO-modulated pitch variation via delay modulation.

video

Video effects for OxiMedia.

vocoder

Vocoder effect module.

warp

Audio warp effects: tape-style warping, pitch bend, and formant shifting.

waveshaper

Waveshaping distortion effect.

wet_dry

Wet/dry mix control for audio effects.

Structs

ReverbConfig

Configuration for reverb effects.

WetDryWrapper

A lightweight wrapper that adds wet/dry mix control to any AudioEffect.

Enums

EffectError

Error types for audio effects.

Traits

AudioEffect

Core trait for audio effects.

Type Aliases

Result

Result type for effect operations.