<s>
LADSPA	B-Language
is	O
an	O
acronym	O
for	O
Linux	B-Language
Audio	I-Language
Developer	I-Language
's	I-Language
Simple	I-Language
Plugin	I-Language
API	I-Language
.	O
</s>
<s>
It	O
is	O
an	O
application	B-Application
programming	I-Application
interface	I-Application
(	O
API	B-Application
)	O
standard	O
for	O
handling	O
audio	O
filters	O
and	O
audio	B-Algorithm
signal	I-Algorithm
processing	I-Algorithm
effects	O
,	O
licensed	O
under	O
LGPL-2.1-or-later	B-Application
.	O
</s>
<s>
It	O
was	O
originally	O
designed	O
for	O
Linux	B-Application
through	O
consensus	O
on	O
the	O
Linux	B-Application
Audio	O
Developers	O
Mailing	O
List	O
,	O
but	O
works	O
on	O
a	O
variety	O
of	O
other	O
platforms	O
.	O
</s>
<s>
It	O
is	O
used	O
in	O
many	O
free	B-Application
audio	I-Application
software	I-Application
projects	O
and	O
there	O
is	O
a	O
wide	O
range	O
of	O
LADSPA	B-Language
plug-ins	B-Application
available	O
.	O
</s>
<s>
LADSPA	B-Language
exists	O
primarily	O
as	O
a	O
header	B-Language
file	I-Language
written	O
in	O
the	O
programming	B-Language
language	I-Language
C	I-Language
.	O
</s>
<s>
There	O
are	O
many	O
audio	O
plugin	B-Application
standards	O
and	O
most	O
major	O
modern	O
software	O
synthesizers	O
and	O
sound	O
editors	O
support	O
a	O
variety	O
.	O
</s>
<s>
The	O
best	O
known	O
standard	O
is	O
probably	O
Steinberg	O
's	O
Virtual	B-Application
Studio	I-Application
Technology	I-Application
.	O
</s>
<s>
LADSPA	B-Language
is	O
unusual	O
in	O
that	O
it	O
attempts	O
to	O
provide	O
only	O
the	O
"	O
Greatest	O
Common	O
Divisor	O
"	O
of	O
other	O
standards	O
.	O
</s>
<s>
This	O
means	O
that	O
its	O
scope	O
is	O
limited	O
,	O
but	O
it	O
is	O
simple	O
and	O
plugins	B-Application
written	O
using	O
it	O
are	O
easy	O
to	O
embed	O
in	O
many	O
other	O
programs	O
.	O
</s>
<s>
DSSI	B-Application
extends	O
LADSPA	B-Language
to	O
cover	O
instrument	O
plugins	B-Application
.	O
</s>
<s>
LV2	B-Application
is	O
a	O
successor	O
,	O
based	O
on	O
LADSPA	B-Language
and	O
DSSI	B-Application
,	O
but	O
permitting	O
easy	O
extensibility	O
,	O
allowing	O
custom	O
user	O
interfaces	O
,	O
MIDI	O
messages	O
,	O
and	O
custom	O
extensions	O
.	O
</s>
