LADSPA is an acronym for Linux Audio Developer's Simple Plugin API. It is an application programming interface (API) standard for handling audio filters and audio signal processing effects, licensed under LGPL-2.1-or-later. It was originally designed for Linux through consensus on the Linux Audio Developers Mailing List, but works on a variety of other platforms. It is used in many free audio software projects and there is a wide range of LADSPA plug-ins available.
Ardour is a hard disk recorder and digital audio workstation application that runs on Linux, macOS, FreeBSD and Microsoft Windows. Its primary author is Paul Davis, who was also responsible for the JACK Audio Connection Kit. It is intended as a digital audio workstation suitable for professional use.
Virtual Studio Technology (VST) is an audio plug-in software interface that integrates software synthesizers and effects units into digital audio workstations. VST and similar technologies use digital signal processing to simulate traditional recording studio hardware in software. Thousands of plugins exist, both commercial and freeware, and many audio applications support VST under license from its creator, Steinberg.
A digital audio workstation is an electronic device or application software used for recording, editing and producing audio files. DAWs come in a wide variety of configurations from a single software program on a laptop, to an integrated stand-alone unit, all the way to a highly complex configuration of numerous components controlled by a central computer. Regardless of configuration, modern DAWs have a central interface that allows the user to alter and mix multiple recordings and tracks into a final produced piece.
Rosegarden is a free software digital audio workstation program developed for Linux with ALSA, JACK and Qt4. It acts as an audio and MIDI sequencer, scorewriter and musical composition and editing tool. It is intended to be a free and alternative to such applications as Cubase.
Audio editing software is any software or computer program which allows editing and generating audio data. Audio editing software can be implemented completely or partly as a library, as a computer application, as a web application, or as a loadable kernel module. Wave editors are digital audio editors. There are many sources of software available to perform this function. Most can edit music, apply effects and filters, and adjust stereo channels.
Renoise is a digital audio workstation (DAW) based upon the heritage and development of tracker software. Its primary use is the composition of music using sound samples, soft synths, and effects plug-ins. It is also able to interface with MIDI and OSC equipment. The main difference between Renoise and other music software is the characteristic vertical timeline sequencer used by tracking software.
Audio Units (AU) are a system-level plug-in architecture provided by Core Audio in Apple's macOS and iOS operating systems. Audio Units are a set of application programming interface (API) services provided by the operating system to generate, process, receive, or otherwise manipulate streams of audio in near-real-time with minimal latency. It may be thought of as Apple's architectural equivalent to another popular plug-in format, Steinberg's Virtual Studio Technology (VST).
MusE is computer software, a sequencer for Musical Instrument Digital Interface (MIDI) and audio, with recording and editing abilities. It was originally written by Werner Schweer and now is developed by the MusE development team. It is free software released under GPL-2.0-or-later.
Disposable Soft Synth Interface (DSSI) is a virtual instrument plugin architecture for use by music sequencer applications. It was designed for applications running under Linux, although there is nothing specific to Linux in the interface itself. It is distributed under the terms of a combination of LGPL-2.1-or-later and some BSD licenses, all of which are free software licences.
LiVES (LiVES Editing System) is a free and open-source video editing software and VJ tool, released under the GNU General Public License version 3 or later. There are binary versions available for most popular Linux distributions (including Debian, Ubuntu, Fedora, Suse, Gentoo, Slackware, Arch Linux, Mandriva and Mageia). There are also ports for BSD, and it will run under Solaris and IRIX. It has been compiled under OS X Leopard, but not thoroughly tested on that platform. In early 2019, a version for Microsoft Windows was announced, with a release slated for in the second half of 2019.
Generalized Music Plug-in Interface (GMPI) is a working group of the MIDI Manufacturers Association set up to consider the feasibility of a standard interface for audio and MIDI software plug-ins, to complement or supersede existing vendor-specific interfaces such as Audio Units.
LMMS is a digital audio workstation application program. It allows music to be produced by arranging samples, synthesizing sounds, entering notes via mouse or by playing on a MIDI keyboard, and combining the features of trackers and sequencers. It is free and open source software, written in Qt and released under GPL-2.0-or-later.
REAPER is a digital audio workstation and MIDI sequencer application created by Cockos. The current version is available for Microsoft Windows and macOS, as well as for Linux. REAPER acts as a host to most industry-standard plug-in formats and can import all commonly used media formats, including video. REAPER and its included plug-ins are available in 32-bit and 64-bit format.
Real-Time AudioSuite (RTAS) is an audio plug-in format developed by Digidesign, currently Avid Technology, for their Pro Tools LE and Pro Tools M-Powered systems, although they can be run on Pro Tools HD and Pro Tools TDM systems. RTAS plug-ins use the processing power of the host computer rather than DSP cards used in the Pro Tools HD systems. As the name suggests, the plug-in architecture is designed to be run in real-time, mimicking hardware inserts on traditional mixing console. This is in contrast to rendering files out of time with effects applied directly to the audio, which in Pro Tools is facilitated by AudioSuite Plug-ins. Avid's AAX format, which runs on both native CPU and Pro Tools HDX DSP, is the replacement for RTAS.
LV2 is a set of royalty-free open standards for music production plug-ins and matching host applications. It includes support for the synthesis and processing of digital audio and CV, events such as MIDI and OSC, and provides a free alternative to audio plug-in standards such as Virtual Studio Technology (VST) and Audio Units (AU).
JUCE is an 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. It is dual licensed under the GPLv3 and a commercial license.
MAGIX Samplitude/ Sequoia is a computer program made by MAGIX for recording, editing, mixing, mastering and outputting audio. The first version was released in 1992 for the Amiga and three years later for Microsoft Windows. The latest versions of the software are Samplitude Pro X5, Samplitude Pro X5 Suite and Sequoia 16. Samplitude is an example of a digital audio workstation (DAW).
CLever Audio Plug-in or CLAP is an open source software architecture, application programming interface and reference implementation suite for audio effects plugins in digital audio workstations. The specification and reference implementation was released in 2022 by u-he and Bitwig.
