KoalaDSP's Spectrex is a Software Development Kit that lets you build GPU accelerated 2D and 3D spectrum visualizers.
Making visualization products with real-time spectrum analysis is not easy. We want to give audio developers a chance to create cool audio visualizations in their own apps and to be creative with audio signals and spectrums. This is why we've opened up a big part of our own library called Spectrex, free to use.
Spectrex supports OpenGL and JUCE, and has already shipped in various software products out there. The library is shipped precompiled, compatible with CMake, and its examples are fully open-source and built using JUCE. The library can be used with other frameworks as well.
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This repository is the Community Edition, and is meant for fancy visualizations with aesthetic value.
The Community Edition is free to use in any application, and has the following features:
- 🐥 High-level interface: 2D real-time pan/zoom spectrogram + waveform that are fully synchronized.
- 🔮 Low-level interface: real-time processing that ties in with graphics APIs such as OpenGL.
- 📚 JUCE examples: 2D spectrogram + waveform, 3D spectrum visualizers using custom OpenGL shaders.
- 💻 macOS and Windows: Microsoft Visual Studio 2019, 2022 (Windows 7+) and latest Xcode (macOS 10.13+).
If you're looking for more extensive applications involving accurate spectrum analysis, we also offer an Enhanced Edition.
The Enhanced Edition contains a few more exclusive features intended for more extensive applications, such as:
- 🌟 FFT: sizes up to 8192. (Community Edition: 256, 512)
- 🌟 Waveform: Stereo (2x), Left, Right, Mid, Side views. (Community Edition: 1x downmixed waveform)
- 🌟 Override mode: lets the Spectrogram and Waveform wrap from left to right.
- 🌟 Playhead sync: syncs the Spectrogram and Waveform position with the DAW playhead and in bars.
- 🌟 Signal metering components: CorrelationMeter, Goniometer and more visualization components.
- 🌟 Customization: More customization functions and properties for various classes.
Contact us to find out more.
For documentation, refer to the code (extensively documented), any included generated documentation, or the examples.
When including the precompiled libraries into your released products, please make sure to include the third-party attributions in LICENSE.txt somewhere in your software, installer or distribution.
The examples in examples are licensed using the open-source MIT license.
The examples directory contains two examples built for JUCE: a real-time 2D spectrogram and waveform visualizer (Viz2DApp), and a real-time 3D spectrum visualizer using custom OpenGL shaders (Viz3DApp).
Visit https://koaladsp.com or check out our Discord.