https://github.com/zl-audio/zlequalizer
equalizer plugin
https://github.com/zl-audio/zlequalizer
aax audio-effect audio-unit equalizer juce lv2 vst3
Last synced: 4 months ago
JSON representation
equalizer plugin
- Host: GitHub
- URL: https://github.com/zl-audio/zlequalizer
- Owner: ZL-Audio
- License: agpl-3.0
- Created: 2023-12-10T21:38:43.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2026-01-10T06:23:48.000Z (5 months ago)
- Last Synced: 2026-01-11T01:22:02.668Z (5 months ago)
- Topics: aax, audio-effect, audio-unit, equalizer, juce, lv2, vst3
- Language: C++
- Homepage: https://zl-audio.github.io/plugins/zlequalizer2/
- Size: 4.24 MB
- Stars: 735
- Watchers: 14
- Forks: 28
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE.md
Awesome Lists containing this project
README
# ZL Equalizer
![pluginval]()
[](https://opensource.org/license/agpl-v3)
[](https://somsubhra.github.io/github-release-stats/?username=ZL-Audio&repository=ZLEqualizer&page=1&per_page=30)
ZL Equalizer is an equalizer plugin.
## Build from Source
### Install Dependencies
Please make sure `Clang` (`AppleClang 16+` or `LLVM/Clang 17+`), `cmake` (minimum 3.25), `ninja` are installed and configured on your OS.
On Windows (with Intel chips), you may install Intel® Integrated Performance Primitives and set its path as an environment variable `IPP_DIR`. It is not a hard requirement as KFR has already been used for SIMD/DFT acceleration.
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 Equalizer 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 `ZL_EQ_BAND_NUM` as the number of bands, default 24 bands
- The plugins built with different `ZL_EQ_BAND_NUM` may NOT be compatible with each other.
- the variable `KFR_ARCHS` as a list of SIMD instruction sets you want to dispatch
- If you are on x86_64, set it as `"sse2;avx;avx2"`.
- If you are on arm64, set it as `"neon64"`.
- If you know the SIMD instruction sets (fully) supported by your CPU, set it as the one with the largest register size. For example, if your CPU supports SSE2 & SSE41 & AVX, set it as `"avx"`.
- I would suggest excluding `avx512` even if it is supported by your CPU.
- 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/ZLEqualizer
cd ZLEqualizer
git submodule update --init --recursive
cmake -B Builds -G Ninja -DCMAKE_BUILD_TYPE=Release -DKFR_ENABLE_MULTIARCH=ON -DKFR_ARCHS="sse2;avx;avx2" -DZL_JUCE_FORMATS="VST3;LV2" -DZL_EQ_BAND_NUM=24 .
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/ZLEqualizer_artefacts/Release` and copy them manually.
## License
ZL Equalizer 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 Equalizer](assets/logo.svg) are not covered by this license.
Copyright (c) 2023 - [zsliu98](https://github.com/zsliu98)
JUCE framework from [JUCE](https://github.com/juce-framework/JUCE)
JUCE template from [pamplejuce](https://github.com/sudara/pamplejuce)
[nlopt](https://github.com/stevengj/nlopt) by [Steven G. Johnson](https://github.com/stevengj)
[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)
[inter](https://github.com/rsms/inter) by [The Inter Project Authors](https://github.com/rsms/inter)
## References
Vicanek, Martin. *Matched One-Pole Digital Shelving Filters*. (2019).
Vicanek, Martin. *Matched Second Order Digital Filters*. (2016).
Redmon, Nigel. *Cascading filters*. (2016).
Wishnick, Aaron. *Time-Varying Filters for Musical Applications*. DAFx. (2014).
Moler, Cleve. [*Makima Piecewise Cubic Interpolation*](https://blogs.mathworks.com/cleve/2019/04/29/makima-piecewise-cubic-interpolation/). MathWorks Blogs. (2019).