# ZLCompressor

**Repository Path**: ZL-Audio/ZLCompressor

## Basic Information

- **Project Name**: ZLCompressor
- **Description**: No description available
- **Primary Language**: C++
- **License**: AGPL-3.0
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-08-16
- **Last Updated**: 2026-02-15

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

<p align="center">
  <img src="docs/zlaudio.svg" width="7.5%" hspace="6.068%"/>
  <img src="docs/logo.svg" width="7.5%" hspace="6.068%"/>
</p>

# ZL Compressor
![pluginval](<https://github.com/ZL-Audio/ZLCompressor/actions/workflows/cmake_full_test.yml/badge.svg?branch=main>)
[![License](https://img.shields.io/badge/License-AGPLv3-blue.svg)](https://opensource.org/license/agpl-v3)
[![Downloads](https://img.shields.io/github/downloads/ZL-Audio/ZLCompressor/total)](https://somsubhra.github.io/github-release-stats/?username=ZL-Audio&repository=ZLCompressor&page=1&per_page=30)

ZL Compressor is a compressor plugin.

<img src="https://drive.google.com/uc?export=view&id=1b7aTDklTdt73kORaXwW5fJycM6T9k83U" style="width:750px; max-width: 100%; height: auto" />
 
<!-- ## Usage

See the wiki for details.

## Download

See the releases for the latest version. 

**Please NOTICE**:
- the installer has **NOT** been notarized/EV certificated on macOS/Windows
- the plugin has **NOT** been fully tested on DAWs
 -->

## Build from Source

### Install Dependencies

Please make sure `Clang` (`AppleClang 16+` or `LLVM/Clang 17+`), `cmake 3.25+`, `ninja` are installed and configured on your OS.

On Linux, you can install the remaining dependencies with the following command:

```console
sudo apt-get update && sudo apt install libasound2-dev libx11-dev libxinerama-dev libxext-dev libfreetype-dev libfontconfig1-dev libwebkit2gtk-4.1-dev libglu1-mesa-dev
```

### Clone and Build

Once you have set up the environment, you can clone the ZL Compressor code, populate all submodules, then configure & build the code. Please set:

- the variable `ZL_JUCE_FORMATS` as a list of formats that you want, e.g., `"VST3;LV2"`.
  - AAX plug-ins need to be digitally signed using PACE Anti-Piracy's signing tools before they will run in commercially available versions of Pro Tools.
- the variable related to SIMD instruction sets
  - If you are on x86_64 and you don't know the SIMD instruction sets supported by your CPU, set `KFR_ENABLE_MULTIARCH=ON` and `KFR_ARCHS="sse2;sse42;avx2"` so that the plugin will dispatch SIMD instructions at runtime.
  - If you are on x86_64 and you know the SIMD instruction sets supported by your CPU, choose the one which has the largest SIMD width, except for `avx512`. For example, if your CPU supports `sse2;sse42;avx;avx2;avx512`, choose `avx2`, i.e., set `KFR_ENABLE_MULTIARCH=OFF` and `KFR_ARCH=avx2`.
  - If you are on arm64, set `KFR_ENABLE_MULTIARCH=OFF`.
- If there are multiple compilers on your OS, you may need to pass extra flags to maker sure that cmake uses `LLVM/Clang`.
  - On Linux, you may pass `-DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++`.
  - On Windows, you may pass `-DCMAKE_C_COMPILER=clang-cl -DCMAKE_CXX_COMPILER=clang-cl`.

```console
git clone https://github.com/ZL-Audio/ZLCompressor
cd ZLCompressor
git submodule update --init --recursive
cmake -B Builds -G Ninja -DCMAKE_BUILD_TYPE=Release -DKFR_ENABLE_MULTIARCH=OFF -DZL_JUCE_FORMATS="VST3;LV2" .
cmake --build Builds --config Release
```

After building, the plugins should have been copied to the corresponding folders. If you want to disable the copy process, you can pass `-DZL_JUCE_COPY_PLUGIN=FALSE`, find the binary folders under `Builds/ZLCompressor_artefacts/Release` and copy them manually.

## License

ZL Compressor is licensed under AGPLv3, as found in the [LICENSE.md](LICENSE.md) file. However, the [logo of ZL Audio](assets/zlaudio.svg) and the [logo of ZL Compressor](assets/logo.svg) are not covered by this license.

Copyright (c) 2026 - [zsliu98](https://github.com/zsliu98)

JUCE framework from [JUCE](https://github.com/juce-framework/JUCE)

JUCE template from [pamplejuce](https://github.com/sudara/pamplejuce)

[kfr](https://github.com/kfrlib/kfr) by [KFR](https://github.com/kfrlib)

[Material Symbols](https://github.com/google/material-design-icons) by [Google](https://github.com/google)

## Reference

Dimitrios Giannoulis, Michael Massberg, and Joshua D. Reiss. *Digital dynamic range compressor design—A tutorial and analysis*. Journal of the Audio Engineering Society. (2012).

Martin Vicanek. *Matched One-Pole Digital Shelving Filters*. (2019).

Martin Vicanek. *Matched Second Order Digital Filters*. (2016).

Nigel Redmon. *Cascading filters*. (2016).

Cleve Moler. [*Makima Piecewise Cubic Interpolation*](https://blogs.mathworks.com/cleve/2019/04/29/makima-piecewise-cubic-interpolation/). MathWorks Blogs. (2019).