DSSI is a virtual instrument (software synthesizer) plugin architecture for use by music sequencer applications. A software synthesizer also known as a softsynth or virtual instrument is a Computer program for Digital audio generation A music sequencer (also MIDI sequencer or just sequencer) is software or hardware designed to create and manage computer-generated music It was designed for applications running under Linux, although there is nothing specific to Linux in the interface itself. Linux (commonly pronounced ˈlɪnəks It is distributed under the terms of a combination of GNU Lesser General Public License and some BSD licenses, all of which are free software licences. The GNU Lesser General Public License (formerly the GNU Library General Public License) or LGPL is a Free software license published by the Free Software BSD licenses represent a family of Permissive free software licences. A free software licence is a Software licence which grants recipients rights to modify and redistribute the Software which would otherwise be prohibited by Copyright
DSSI is sometimes described as "LADSPA for instruments". LADSPA is an Acronym for Linux Audio Developers Simple Plugin API. LADSPA is an audio effects plugin architecture for filters, reverbs and other sound processing software tools, whereas DSSI was designed specifically for instrument plugins that generate sound from note events. DSSI extends LADSPA by adding note event delivery, but it also adds predefined program selections and a method for plugins to provide their own user interfaces, both of which may also be used by effects plugins.
DSSI hosts on Linux can also host some VSTi instruments for Microsoft Windows using the dssi-vst wrapper plugin, which in turn make use of the WINE compatibility layer. Steinberg 's Virtual Studio Technology (VST is an interface for integrating software Audio Synthesizer and effect Plugins with Microsoft Windows is a series of Software Operating systems and Graphical user interfaces produced by Microsoft. Wine is an Alcoholic beverage made from the fermentation of Grape juice
DSSI stands for Disposable Soft Synth Interface. This is partly because DSSI was intended to be a lightweight addition to LADSPA that would require little extra effort from authors of LADSPA hosts and plugins to support, and partly to avoid distracting too much developer effort from the GMPI plugin initiative. 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 Perhaps as a partial consequence of this early offhand approach to publicity, the number of DSSI plugins available remains small.
One of the major programs supporting DSSI is Rosegarden. Rosegarden is a Free software Digital audio workstation program developed for Linux with ALSA and KDE.
See also
External links
- DSSI - API for audio processing plugins
- The project's README file - which includes licence information at the end
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