Aloe Filter Crate

Aloe Filter is a comprehensive Rust library designed for audio signal processing by implementing a variety of digital filters. Audio engineers and digital signal processing (DSP) specialists will find this crate particularly useful for its high precision and performance.

Overview

The crate includes implementations of different filter types, including:

• Linkwitz-Riley Filters: Used extensively in audio crossovers, these provide precise control over multi-band separation with minimal phase distortion. Offers lowpass, highpass, and allpass filters with a fixed -24 dB/octave slope.

• Ladder Filters: Inspired by the Moog ladder filter, supporting multiple modes such as low-pass, high-pass, and band-pass with 12 and 24 dB/octave slopes.

• State Variable Filters: Versatile filters that provide low-pass, high-pass, and band-pass filtering utilizing the topology-preserving transform (TPT) method, allowing fast modulation without introducing audio artifacts.

• Ballistics Filter: Useful for dynamics processing, implementing attack/release characteristics commonly employed in envelope followers and compressors.

Features

• Extensive support for filter coefficient calculation using FIR and IIR methods.
• Thread-safe IIR filter processing classes with internal locking mechanisms.
• Real-time capable processing functions designed to minimize denormalized number issues.

Installation

Add the following to your Cargo.toml:

[dependencies]
aloe-filter = "0.1.0"

Usage

A simple example demonstrating a Linkwitz-Riley filter application:

use aloe_filter::LinkwitzRileyFilter;

let mut filter = LinkwitzRileyFilter::default();
filter.set_cutoff_frequency(1000.0);
filter.set_type(LinkwitzRileyFilterType::lowpass);
// Process audio buffer here

For further examples and API details, please refer to the documentation.

Contributing

We welcome contributions from the community. Please check the repository here for issues and development paths.

This README is generated by an AI model and may contain inaccuracies, although great care is taken to ensure precision.

This crate is a translation of the JUCE module.

JUCE is a c++ software framework for developing high performance audio applications.

Usage falls under the GPLv3 as well as the JUCE commercial license.

See github.com/juce-framework/JUCE and the JUCE license page for details.

This crate is in the process of being translated from c++ to rust. For progress updates, please see the workspacer rust project. designed specifically for rust projects.