JUCE

JUCE is a partially open-source cross-platform C++ application framework, used for the development of desktop and mobile applications. JUCE is used in particular for its GUI and plug-ins libraries.

For the TV network formerly known as JCTV, see JUCE TV.
JUCE (Jules' Utility Class Extensions)
Original author(s)Jules Storer
Initial release2004 (2004)
Stable release
5.4.5 / October 16, 2019 (2019-10-16)[1]
Repository
Written inC++
Operating systemCross-platform
TypeDevelopment library
LicenseGPL, commercial
Websitewww.juce.com

The aim of JUCE is to allow software to be written such that the same source code will compile and run identically on Windows, macOS and Linux platforms. It supports various development environments and compilers.

History

Juce resulted from a split-out of the underlying C++ code that was developed by Julian Storer to create Tracktion's (now Waveform) DAW graphic and audio capabilities. It was first released to the public in 2004. It is covered by a dual GPL/commercial license.

JUCE and Raw Material Software were acquired in November 2014 by London-based hardware manufacturer ROLI for an undisclosed amount.[2]

In April 2020 it was announced that JUCE had been sold by ROLI to the audio technology company PACE.

Official support

JUCE is intended to be usable in exactly the same way on multiple platforms and compilers. Raw Material Software gives the following list of platforms and compilers on which support is officially confirmed; others may work, but have not been officially tested.

Supported platforms

JUCE is supported on the following platforms.

  • Windows Vista, 7, 8, and 10
  • macOS versions 10.7 and later
  • iOS versions 3 and later
  • Linux kernel series 2.6 and later
  • Android using NDK-v5 and later

Supported compilers

JUCE is officially confirmed to work properly with the following compilers.

Features

Like many other frameworks (e.g., Qt, wxWidgets, GTK+, etc.), JUCE contains classes providing a range of functions that cover user-interface elements, graphics, audio, XML and JSON parsing, networking, cryptography, multi-threading, an integrated interpreter that mimics ECMAScript's syntax, and various other commonly used features. Application developers needing several third-party libraries may thus be able to consolidate and use only the JUCE library, or at least reduce the number of third-party libraries they use. In this, the original inspiration was Java's JDK, and JUCE was intended to be "something similar for C++".

A notable feature of JUCE when compared to other similar frameworks is its large set of audio functionality; this is because JUCE was originally developed as a framework for Tracktion, an audio sequencer, before being split off into a standalone product. JUCE has support for audio devices (such as CoreAudio, ASIO, ALSA, JACK, WASAPI, DirectSound) and MIDI playback, polyphonic synthesizers, built-in readers for common audio file formats (such as WAV, AIFF, FLAC, MP3 and Vorbis), as well as wrappers for building various types of audio plugin, such as VST effects and instruments. This has led to its widespread use in the audio development community.[3]

JUCE comes with wrapper classes for building audio and browser plugins. When building an audio plugin, a single binary is produced that supports multiple plugin formats (VST & VST3, RTAS, AAX, Audio Units). Since all the platform and format-specific code is contained in the wrapper, a user can build Mac and Windows VST/VST3/RTAS/AAX/AUs from a single codebase. Targeting LV2 is also possible with the use of a fork.[4][5][6]

Browser plugins are handled in a similar way: a single binary is produced that functions as both an NPAPI and an ActiveX plugin.


Tools

The "Projucer" is an IDE tool for creating and managing JUCE projects. When the files and settings for a JUCE project have been specified, the Projucer automatically generates a collection of 3rd-party project files to allow the project to be compiled natively on each target platform. It can currently generate Xcode projects, Visual Studio projects, Linux Makefiles, Android Ant builds and CodeBlocks projects. As well as providing a way to manage a project's files and settings, it also has a code editor, an integrated GUI editor, wizards for creating new projects and files, and a live coding engine useful for user interface design.

See also

References
  1. https://github.com/WeAreROLI/JUCE/releases/tag/5.4.5
  2. "Music Hardware Maker ROLI Acquires JUCE, A Key Music Industry Framework". TechCrunch. 2014-11-18. Retrieved 2016-03-19.
  3. "Ecosystem". Archived from the original on August 7, 2013. Retrieved April 25, 2017.
  4. falkTX's DPF fork: https://github.com/DISTRHO/juce/tree/juce6
  5. KottV's lv2-porting-project fork https://github.com/lv2-porting-project/JUCE
  6. JUCE LV2 issue: https://github.com/juce-framework/JUCE/issues/123
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