DSSI (a recursive acronym for DSSI Soft Synth Instrument) is a virtual instrument (software synthesizer) plugin architecture for music sequencer applications running under Linux. It is sometimes described as LADSPA for instruments , LADSPA being the more general plugin architecture for filters, reverbs and other sound processing software tools, whereas DSSI is specifically for instruments. DSSI however uses LADSPA as an event transport mechanism and as such extends LADSPA.

DSSI can wrap Virtual Studio Technology instruments for Microsoft Windows using the dssi-vst plugin, which in turn make use of the WINE compatibility layer.

One of the major programs supporting DSSI is Rosegarden.

=See also=

*Free audio software *LADSPA *Software synthesizer

=External link=